Implements a set of methods for culture-sensitive string comparisons. More...

Inheritance diagram for System.Globalization.CompareInfo:

Collaboration diagram for System.Globalization.CompareInfo:

Public Member Functions
virtual int	Compare (string string1, string string2)
	Compares two strings. More...

virtual int	Compare (string string1, string string2, CompareOptions options)
	Compares two strings using the specified T:System.Globalization.CompareOptions value. More...

virtual int	Compare (string string1, int offset1, int length1, string string2, int offset2, int length2)
	Compares a section of one string with a section of another string. More...

virtual int	Compare (string string1, int offset1, string string2, int offset2, CompareOptions options)
	Compares the end section of a string with the end section of another string using the specified T:System.Globalization.CompareOptions value. More...

virtual int	Compare (string string1, int offset1, string string2, int offset2)
	Compares the end section of a string with the end section of another string. More...

virtual int	Compare (string string1, int offset1, int length1, string string2, int offset2, int length2, CompareOptions options)
	Compares a section of one string with a section of another string using the specified T:System.Globalization.CompareOptions value. More...

virtual bool	IsPrefix (string source, string prefix, CompareOptions options)
	Determines whether the specified source string starts with the specified prefix using the specified T:System.Globalization.CompareOptions value. More...

virtual bool	IsPrefix (string source, string prefix)
	Determines whether the specified source string starts with the specified prefix. More...

virtual bool	IsSuffix (string source, string suffix, CompareOptions options)
	Determines whether the specified source string ends with the specified suffix using the specified T:System.Globalization.CompareOptions value. More...

virtual bool	IsSuffix (string source, string suffix)
	Determines whether the specified source string ends with the specified suffix. More...

virtual int	IndexOf (string source, char value)
	Searches for the specified character and returns the zero-based index of the first occurrence within the entire source string. More...

virtual int	IndexOf (string source, string value)
	Searches for the specified substring and returns the zero-based index of the first occurrence within the entire source string. More...

virtual int	IndexOf (string source, char value, CompareOptions options)
	Searches for the specified character and returns the zero-based index of the first occurrence within the entire source string using the specified T:System.Globalization.CompareOptions value. More...

virtual int	IndexOf (string source, string value, CompareOptions options)
	Searches for the specified substring and returns the zero-based index of the first occurrence within the entire source string using the specified T:System.Globalization.CompareOptions value. More...

virtual int	IndexOf (string source, char value, int startIndex)
	Searches for the specified character and returns the zero-based index of the first occurrence within the section of the source string that extends from the specified index to the end of the string. More...

virtual int	IndexOf (string source, string value, int startIndex)
	Searches for the specified substring and returns the zero-based index of the first occurrence within the section of the source string that extends from the specified index to the end of the string. More...

virtual int	IndexOf (string source, char value, int startIndex, CompareOptions options)
	Searches for the specified character and returns the zero-based index of the first occurrence within the section of the source string that extends from the specified index to the end of the string using the specified T:System.Globalization.CompareOptions value. More...

virtual int	IndexOf (string source, string value, int startIndex, CompareOptions options)
	Searches for the specified substring and returns the zero-based index of the first occurrence within the section of the source string that extends from the specified index to the end of the string using the specified T:System.Globalization.CompareOptions value. More...

virtual int	IndexOf (string source, char value, int startIndex, int count)
	Searches for the specified character and returns the zero-based index of the first occurrence within the section of the source string that starts at the specified index and contains the specified number of elements. More...

virtual int	IndexOf (string source, string value, int startIndex, int count)
	Searches for the specified substring and returns the zero-based index of the first occurrence within the section of the source string that starts at the specified index and contains the specified number of elements. More...

virtual int	IndexOf (string source, char value, int startIndex, int count, CompareOptions options)
	Searches for the specified character and returns the zero-based index of the first occurrence within the section of the source string that starts at the specified index and contains the specified number of elements using the specified T:System.Globalization.CompareOptions value. More...

virtual int	IndexOf (string source, string value, int startIndex, int count, CompareOptions options)
	Searches for the specified substring and returns the zero-based index of the first occurrence within the section of the source string that starts at the specified index and contains the specified number of elements using the specified T:System.Globalization.CompareOptions value. More...

virtual int	LastIndexOf (string source, char value)
	Searches for the specified character and returns the zero-based index of the last occurrence within the entire source string. More...

virtual int	LastIndexOf (string source, string value)
	Searches for the specified substring and returns the zero-based index of the last occurrence within the entire source string. More...

virtual int	LastIndexOf (string source, char value, CompareOptions options)
	Searches for the specified character and returns the zero-based index of the last occurrence within the entire source string using the specified T:System.Globalization.CompareOptions value. More...

virtual int	LastIndexOf (string source, string value, CompareOptions options)
	Searches for the specified substring and returns the zero-based index of the last occurrence within the entire source string using the specified T:System.Globalization.CompareOptions value. More...

virtual int	LastIndexOf (string source, char value, int startIndex)
	Searches for the specified character and returns the zero-based index of the last occurrence within the section of the source string that extends from the beginning of the string to the specified index. More...

virtual int	LastIndexOf (string source, string value, int startIndex)
	Searches for the specified substring and returns the zero-based index of the last occurrence within the section of the source string that extends from the beginning of the string to the specified index. More...

virtual int	LastIndexOf (string source, char value, int startIndex, CompareOptions options)
	Searches for the specified character and returns the zero-based index of the last occurrence within the section of the source string that extends from the beginning of the string to the specified index using the specified T:System.Globalization.CompareOptions value. More...

virtual int	LastIndexOf (string source, string value, int startIndex, CompareOptions options)
	Searches for the specified substring and returns the zero-based index of the last occurrence within the section of the source string that extends from the beginning of the string to the specified index using the specified T:System.Globalization.CompareOptions value. More...

virtual int	LastIndexOf (string source, char value, int startIndex, int count)
	Searches for the specified character and returns the zero-based index of the last occurrence within the section of the source string that contains the specified number of elements and ends at the specified index. More...

virtual int	LastIndexOf (string source, string value, int startIndex, int count)
	Searches for the specified substring and returns the zero-based index of the last occurrence within the section of the source string that contains the specified number of elements and ends at the specified index. More...

virtual int	LastIndexOf (string source, char value, int startIndex, int count, CompareOptions options)
	Searches for the specified character and returns the zero-based index of the last occurrence within the section of the source string that contains the specified number of elements and ends at the specified index using the specified T:System.Globalization.CompareOptions value. More...

virtual int	LastIndexOf (string source, string value, int startIndex, int count, CompareOptions options)
	Searches for the specified substring and returns the zero-based index of the last occurrence within the section of the source string that contains the specified number of elements and ends at the specified index using the specified T:System.Globalization.CompareOptions value. More...

virtual SortKey	GetSortKey (string source, CompareOptions options)
	Gets a T:System.Globalization.SortKey object for the specified string using the specified T:System.Globalization.CompareOptions value. More...

virtual SortKey	GetSortKey (string source)
	Gets the sort key for the specified string. More...

override bool	Equals (object value)
	Determines whether the specified object is equal to the current T:System.Globalization.CompareInfo object. More...

override int	GetHashCode ()
	Serves as a hash function for the current T:System.Globalization.CompareInfo for hashing algorithms and data structures, such as a hash table. More...

virtual int	GetHashCode (string source, CompareOptions options)
	Gets the hash code for a string based on specified comparison options. More...

override string	ToString ()
	Returns a string that represents the current T:System.Globalization.CompareInfo object. More...

Static Public Member Functions
static CompareInfo	GetCompareInfo (int culture, Assembly assembly)
	Initializes a new T:System.Globalization.CompareInfo object that is associated with the specified culture and that uses string comparison methods in the specified T:System.Reflection.Assembly. More...

static CompareInfo	GetCompareInfo (string name, Assembly assembly)
	Initializes a new T:System.Globalization.CompareInfo object that is associated with the specified culture and that uses string comparison methods in the specified T:System.Reflection.Assembly. More...

static CompareInfo	GetCompareInfo (int culture)
	Initializes a new T:System.Globalization.CompareInfo object that is associated with the culture with the specified identifier. More...

static CompareInfo	GetCompareInfo (string name)
	Initializes a new T:System.Globalization.CompareInfo object that is associated with the culture with the specified name. More...

static bool	IsSortable (char ch)
	Indicates whether a specified Unicode character is sortable. More...

static bool	IsSortable (string text)
	Indicates whether a specified Unicode string is sortable. More...

Public Attributes
int	LCID => CultureInfo.GetCultureInfo(Name).LCID
	Gets the properly formed culture identifier for the current T:System.Globalization.CompareInfo. More...

Properties
virtual string	Name `[get]`
	Gets the name of the culture used for sorting operations by this T:System.Globalization.CompareInfo object. More...

SortVersion?	Version `[get]`
	Gets information about the version of Unicode used for comparing and sorting strings. More...

Detailed Description

Implements a set of methods for culture-sensitive string comparisons.

Definition at line 13 of file CompareInfo.cs.

Member Function Documentation

◆ Compare() [1/6]

virtual int System.Globalization.CompareInfo.Compare	(	string	string1,
		string	string2
	)

virtual

Compares two strings.

Parameters

string1	The first string to compare.
string2	The second string to compare.

Returns: A 32-bit signed integer indicating the lexical relationship between the two comparands.Value Condition zero The two strings are equal. less than zero string1 is less than string2 . greater than zero string1 is greater than string2 .

Definition at line 313 of file CompareInfo.cs.

◆ Compare() [2/6]

virtual int System.Globalization.CompareInfo.Compare	(	string	string1,
		string	string2,
		CompareOptions	options
	)

virtual

Compares two strings using the specified T:System.Globalization.CompareOptions value.

Parameters

string1	The first string to compare.
string2	The second string to compare.
options	A value that defines how string1 and string2 should be compared. options is either the enumeration value F:System.Globalization.CompareOptions.Ordinal, or a bitwise combination of one or more of the following values: F:System.Globalization.CompareOptions.IgnoreCase, F:System.Globalization.CompareOptions.IgnoreSymbols, F:System.Globalization.CompareOptions.IgnoreNonSpace, F:System.Globalization.CompareOptions.IgnoreWidth, F:System.Globalization.CompareOptions.IgnoreKanaType, and F:System.Globalization.CompareOptions.StringSort.

Returns: A 32-bit signed integer indicating the lexical relationship between the two comparands.Value Condition zero The two strings are equal. less than zero string1 is less than string2 . greater than zero string1 is greater than string2 .

Exceptions

T:System.ArgumentException options contains an invalid T:System.Globalization.CompareOptions value.

Definition at line 329 of file CompareInfo.cs.

◆ Compare() [3/6]

virtual int System.Globalization.CompareInfo.Compare	(	string	string1,
		int	offset1,
		int	length1,
		string	string2,
		int	offset2,
		int	length2
	)

virtual

Compares a section of one string with a section of another string.

Parameters

string1	The first string to compare.
offset1	The zero-based index of the character in string1 at which to start comparing.
length1	The number of consecutive characters in string1 to compare.
string2	The second string to compare.
offset2	The zero-based index of the character in string2 at which to start comparing.
length2	The number of consecutive characters in string2 to compare.

Returns: A 32-bit signed integer indicating the lexical relationship between the two comparands.Value Condition zero The two strings are equal. less than zero The specified section of string1 is less than the specified section of string2 . greater than zero The specified section of string1 is greater than the specified section of string2 .

Exceptions

T:System.ArgumentOutOfRangeException offset1 or length1 or offset2 or length2 is less than zero.-or- offset1 is greater than or equal to the number of characters in string1 .-or- offset2 is greater than or equal to the number of characters in string2 .-or- length1 is greater than the number of characters from offset1 to the end of string1 .-or- length2 is greater than the number of characters from offset2 to the end of string2 .

Definition at line 377 of file CompareInfo.cs.

◆ Compare() [4/6]

virtual int System.Globalization.CompareInfo.Compare	(	string	string1,
		int	offset1,
		string	string2,
		int	offset2,
		CompareOptions	options
	)

virtual

Compares the end section of a string with the end section of another string using the specified T:System.Globalization.CompareOptions value.

Parameters

string1	The first string to compare.
offset1	The zero-based index of the character in string1 at which to start comparing.
string2	The second string to compare.
offset2	The zero-based index of the character in string2 at which to start comparing.
options	A value that defines how string1 and string2 should be compared. options is either the enumeration value F:System.Globalization.CompareOptions.Ordinal, or a bitwise combination of one or more of the following values: F:System.Globalization.CompareOptions.IgnoreCase, F:System.Globalization.CompareOptions.IgnoreSymbols, F:System.Globalization.CompareOptions.IgnoreNonSpace, F:System.Globalization.CompareOptions.IgnoreWidth, F:System.Globalization.CompareOptions.IgnoreKanaType, and F:System.Globalization.CompareOptions.StringSort.

Returns: A 32-bit signed integer indicating the lexical relationship between the two comparands.Value Condition zero The two strings are equal. less than zero The specified section of string1 is less than the specified section of string2 . greater than zero The specified section of string1 is greater than the specified section of string2 .

Exceptions

T:System.ArgumentOutOfRangeException	offset1 or offset2 is less than zero.-or- offset1 is greater than or equal to the number of characters in string1 .-or- offset2 is greater than or equal to the number of characters in string2 .
T:System.ArgumentException	options contains an invalid T:System.Globalization.CompareOptions value.

Definition at line 396 of file CompareInfo.cs.

◆ Compare() [5/6]

virtual int System.Globalization.CompareInfo.Compare	(	string	string1,
		int	offset1,
		string	string2,
		int	offset2
	)

virtual

Compares the end section of a string with the end section of another string.

Parameters

string1	The first string to compare.
offset1	The zero-based index of the character in string1 at which to start comparing.
string2	The second string to compare.
offset2	The zero-based index of the character in string2 at which to start comparing.

Returns: A 32-bit signed integer indicating the lexical relationship between the two comparands.Value Condition zero The two strings are equal. less than zero The specified section of string1 is less than the specified section of string2 . greater than zero The specified section of string1 is greater than the specified section of string2 .

Exceptions

T:System.ArgumentOutOfRangeException offset1 or offset2 is less than zero.-or- offset1 is greater than or equal to the number of characters in string1 .-or- offset2 is greater than or equal to the number of characters in string2 .

Definition at line 412 of file CompareInfo.cs.

◆ Compare() [6/6]

virtual int System.Globalization.CompareInfo.Compare	(	string	string1,
		int	offset1,
		int	length1,
		string	string2,
		int	offset2,
		int	length2,
		CompareOptions	options
	)

virtual

Compares a section of one string with a section of another string using the specified T:System.Globalization.CompareOptions value.

Parameters

string1	The first string to compare.
offset1	The zero-based index of the character in string1 at which to start comparing.
length1	The number of consecutive characters in string1 to compare.
string2	The second string to compare.
offset2	The zero-based index of the character in string2 at which to start comparing.
length2	The number of consecutive characters in string2 to compare.
options	A value that defines how string1 and string2 should be compared. options is either the enumeration value F:System.Globalization.CompareOptions.Ordinal, or a bitwise combination of one or more of the following values: F:System.Globalization.CompareOptions.IgnoreCase, F:System.Globalization.CompareOptions.IgnoreSymbols, F:System.Globalization.CompareOptions.IgnoreNonSpace, F:System.Globalization.CompareOptions.IgnoreWidth, F:System.Globalization.CompareOptions.IgnoreKanaType, and F:System.Globalization.CompareOptions.StringSort.

Returns: A 32-bit signed integer indicating the lexical relationship between the two comparands.Value Condition zero The two strings are equal. less than zero The specified section of string1 is less than the specified section of string2 . greater than zero The specified section of string1 is greater than the specified section of string2 .

Exceptions

T:System.ArgumentOutOfRangeException offset1 or length1 or offset2 or length2 is less than zero.-or- offset1 is greater than or equal to the number of characters in string1 .-or- offset2 is greater than or equal to the number of characters in string2 .-or- length1 is greater than the number of characters from offset1 to the end of string1 .-or- length2 is greater than the number of characters from offset2 to the end of string2 .

T:System.ArgumentException options contains an invalid T:System.Globalization.CompareOptions value.

Definition at line 436 of file CompareInfo.cs.

◆ Equals()

override bool System.Globalization.CompareInfo.Equals ( object value )

Determines whether the specified object is equal to the current T:System.Globalization.CompareInfo object.

Parameters

value The object to compare with the current T:System.Globalization.CompareInfo.

Returns: true if the specified object is equal to the current T:System.Globalization.CompareInfo; otherwise, false.

Definition at line 1263 of file CompareInfo.cs.

◆ GetCompareInfo() [1/4]

static CompareInfo System.Globalization.CompareInfo.GetCompareInfo	(	int	culture,
		Assembly	assembly
	)

static

Initializes a new T:System.Globalization.CompareInfo object that is associated with the specified culture and that uses string comparison methods in the specified T:System.Reflection.Assembly.

Parameters

culture	An integer representing the culture identifier.
assembly	An T:System.Reflection.Assembly that contains the string comparison methods to use.

Returns: A new T:System.Globalization.CompareInfo object associated with the culture with the specified identifier and using string comparison methods in the current T:System.Reflection.Assembly.

Exceptions

T:System.ArgumentNullException	assembly is `null`.
T:System.ArgumentException	assembly is of an invalid type.

Definition at line 133 of file CompareInfo.cs.

◆ GetCompareInfo() [2/4]

static CompareInfo System.Globalization.CompareInfo.GetCompareInfo	(	string	name,
		Assembly	assembly
	)

static

Initializes a new T:System.Globalization.CompareInfo object that is associated with the specified culture and that uses string comparison methods in the specified T:System.Reflection.Assembly.

Parameters

name	A string representing the culture name.
assembly	An T:System.Reflection.Assembly that contains the string comparison methods to use.

Returns: A new T:System.Globalization.CompareInfo object associated with the culture with the specified identifier and using string comparison methods in the current T:System.Reflection.Assembly.

Exceptions

T:System.ArgumentNullException	name is `null`.-or- assembly is `null`.
T:System.ArgumentException	name is an invalid culture name.-or- assembly is of an invalid type.

Definition at line 156 of file CompareInfo.cs.

◆ GetCompareInfo() [3/4]

static CompareInfo System.Globalization.CompareInfo.GetCompareInfo ( int culture )

static

Initializes a new T:System.Globalization.CompareInfo object that is associated with the culture with the specified identifier.

Parameters

culture An integer representing the culture identifier.

Returns: A new T:System.Globalization.CompareInfo object associated with the culture with the specified identifier and using string comparison methods in the current T:System.Reflection.Assembly.

Definition at line 172 of file CompareInfo.cs.

◆ GetCompareInfo() [4/4]

static CompareInfo System.Globalization.CompareInfo.GetCompareInfo ( string name )

static

Initializes a new T:System.Globalization.CompareInfo object that is associated with the culture with the specified name.

Parameters

name	A string representing the culture name.

Returns: A new T:System.Globalization.CompareInfo object associated with the culture with the specified identifier and using string comparison methods in the current T:System.Reflection.Assembly.

Exceptions

T:System.ArgumentNullException	name is `null`.
T:System.ArgumentException	name is an invalid culture name.

Definition at line 189 of file CompareInfo.cs.

◆ GetHashCode() [1/2]

override int System.Globalization.CompareInfo.GetHashCode ( )

Serves as a hash function for the current T:System.Globalization.CompareInfo for hashing algorithms and data structures, such as a hash table.

Returns: A hash code for the current T:System.Globalization.CompareInfo.

Definition at line 1276 of file CompareInfo.cs.

◆ GetHashCode() [2/2]

virtual int System.Globalization.CompareInfo.GetHashCode	(	string	source,
		CompareOptions	options
	)

virtual

Gets the hash code for a string based on specified comparison options.

Parameters

source	The string whose hash code is to be returned.
options	A value that determines how strings are compared.

Returns: A 32-bit signed integer hash code.

Exceptions

T:System.ArgumentNullException source is null.

Definition at line 1288 of file CompareInfo.cs.

◆ GetSortKey() [1/2]

virtual SortKey System.Globalization.CompareInfo.GetSortKey	(	string	source,
		CompareOptions	options
	)

virtual

Gets a T:System.Globalization.SortKey object for the specified string using the specified T:System.Globalization.CompareOptions value.

Parameters

source The string for which a T:System.Globalization.SortKey object is obtained.

options A bitwise combination of one or more of the following enumeration values that define how the sort key is calculated: F:System.Globalization.CompareOptions.IgnoreCase, F:System.Globalization.CompareOptions.IgnoreSymbols, F:System.Globalization.CompareOptions.IgnoreNonSpace, F:System.Globalization.CompareOptions.IgnoreWidth, F:System.Globalization.CompareOptions.IgnoreKanaType, and F:System.Globalization.CompareOptions.StringSort.

Returns: The T:System.Globalization.SortKey object that contains the sort key for the specified string.

Exceptions

T:System.ArgumentException options contains an invalid T:System.Globalization.CompareOptions value.

Definition at line 1210 of file CompareInfo.cs.

◆ GetSortKey() [2/2]

virtual SortKey System.Globalization.CompareInfo.GetSortKey ( string source )

virtual

Gets the sort key for the specified string.

Parameters

source The string for which a T:System.Globalization.SortKey object is obtained.

Returns: The T:System.Globalization.SortKey object that contains the sort key for the specified string.

Definition at line 1218 of file CompareInfo.cs.

◆ IndexOf() [1/12]

virtual int System.Globalization.CompareInfo.IndexOf	(	string	source,
		char	value
	)

virtual

Searches for the specified character and returns the zero-based index of the first occurrence within the entire source string.

Parameters

source	The string to search.
value	The character to locate within source .

Returns: The zero-based index of the first occurrence of value , if found, within source ; otherwise, -1. Returns 0 (zero) if value is an ignorable character.

Exceptions

T:System.ArgumentNullException source is null.

Definition at line 623 of file CompareInfo.cs.

◆ IndexOf() [2/12]

virtual int System.Globalization.CompareInfo.IndexOf	(	string	source,
		string	value
	)

virtual

Searches for the specified substring and returns the zero-based index of the first occurrence within the entire source string.

Parameters

source	The string to search.
value	The string to locate within source .

Returns: The zero-based index of the first occurrence of value , if found, within source ; otherwise, -1. Returns 0 (zero) if value is an ignorable character.

Exceptions

T:System.ArgumentNullException source is null.-or- value is null.

Definition at line 640 of file CompareInfo.cs.

◆ IndexOf() [3/12]

virtual int System.Globalization.CompareInfo.IndexOf	(	string	source,
		char	value,
		CompareOptions	options
	)

virtual

Searches for the specified character and returns the zero-based index of the first occurrence within the entire source string using the specified T:System.Globalization.CompareOptions value.

Parameters

source	The string to search.
value	The character to locate within source .
options	A value that defines how the strings should be compared. options is either the enumeration value F:System.Globalization.CompareOptions.Ordinal, or a bitwise combination of one or more of the following values: F:System.Globalization.CompareOptions.IgnoreCase, F:System.Globalization.CompareOptions.IgnoreSymbols, F:System.Globalization.CompareOptions.IgnoreNonSpace, F:System.Globalization.CompareOptions.IgnoreWidth, and F:System.Globalization.CompareOptions.IgnoreKanaType.

Returns: The zero-based index of the first occurrence of value , if found, within source , using the specified comparison options; otherwise, -1. Returns 0 (zero) if value is an ignorable character.

Exceptions

T:System.ArgumentNullException	source is `null`.
T:System.ArgumentException	options contains an invalid T:System.Globalization.CompareOptions value.

Definition at line 659 of file CompareInfo.cs.

◆ IndexOf() [4/12]

virtual int System.Globalization.CompareInfo.IndexOf	(	string	source,
		string	value,
		CompareOptions	options
	)

virtual

Searches for the specified substring and returns the zero-based index of the first occurrence within the entire source string using the specified T:System.Globalization.CompareOptions value.

Parameters

source	The string to search.
value	The string to locate within source .
options	A value that defines how source and value should be compared. options is either the enumeration value F:System.Globalization.CompareOptions.Ordinal, or a bitwise combination of one or more of the following values: F:System.Globalization.CompareOptions.IgnoreCase, F:System.Globalization.CompareOptions.IgnoreSymbols, F:System.Globalization.CompareOptions.IgnoreNonSpace, F:System.Globalization.CompareOptions.IgnoreWidth, and F:System.Globalization.CompareOptions.IgnoreKanaType.

Returns: The zero-based index of the first occurrence of value , if found, within source , using the specified comparison options; otherwise, -1. Returns 0 (zero) if value is an ignorable character.

Exceptions

T:System.ArgumentNullException	source is `null`.-or- value is `null`.
T:System.ArgumentException	options contains an invalid T:System.Globalization.CompareOptions value.

Definition at line 679 of file CompareInfo.cs.

◆ IndexOf() [5/12]

virtual int System.Globalization.CompareInfo.IndexOf	(	string	source,
		char	value,
		int	startIndex
	)

virtual

Searches for the specified character and returns the zero-based index of the first occurrence within the section of the source string that extends from the specified index to the end of the string.

Parameters

source	The string to search.
value	The character to locate within source .
startIndex	The zero-based starting index of the search.

Returns: The zero-based index of the first occurrence of value , if found, within the section of source that extends from startIndex to the end of source ; otherwise, -1. Returns startIndex if value is an ignorable character.

Exceptions

T:System.ArgumentNullException	source is `null`.
T:System.ArgumentOutOfRangeException	startIndex is outside the range of valid indexes for source .

Definition at line 697 of file CompareInfo.cs.

◆ IndexOf() [6/12]

virtual int System.Globalization.CompareInfo.IndexOf	(	string	source,
		string	value,
		int	startIndex
	)

virtual

Searches for the specified substring and returns the zero-based index of the first occurrence within the section of the source string that extends from the specified index to the end of the string.

Parameters

source	The string to search.
value	The string to locate within source .
startIndex	The zero-based starting index of the search.

Returns: The zero-based index of the first occurrence of value , if found, within the section of source that extends from startIndex to the end of source ; otherwise, -1. Returns startIndex if value is an ignorable character.

Exceptions

T:System.ArgumentNullException	source is `null`.-or- value is `null`.
T:System.ArgumentOutOfRangeException	startIndex is outside the range of valid indexes for source .

Definition at line 716 of file CompareInfo.cs.

◆ IndexOf() [7/12]

virtual int System.Globalization.CompareInfo.IndexOf	(	string	source,
		char	value,
		int	startIndex,
		CompareOptions	options
	)

virtual

Searches for the specified character and returns the zero-based index of the first occurrence within the section of the source string that extends from the specified index to the end of the string using the specified T:System.Globalization.CompareOptions value.

Parameters

source	The string to search.
value	The character to locate within source .
startIndex	The zero-based starting index of the search.
options	A value that defines how source and value should be compared. options is either the enumeration value F:System.Globalization.CompareOptions.Ordinal, or a bitwise combination of one or more of the following values: F:System.Globalization.CompareOptions.IgnoreCase, F:System.Globalization.CompareOptions.IgnoreSymbols, F:System.Globalization.CompareOptions.IgnoreNonSpace, F:System.Globalization.CompareOptions.IgnoreWidth, and F:System.Globalization.CompareOptions.IgnoreKanaType.

Returns: The zero-based index of the first occurrence of value , if found, within the section of source that extends from startIndex to the end of source , using the specified comparison options; otherwise, -1. Returns startIndex if value is an ignorable character.

Exceptions

T:System.ArgumentNullException	source is `null`.
T:System.ArgumentOutOfRangeException	startIndex is outside the range of valid indexes for source .
T:System.ArgumentException	options contains an invalid T:System.Globalization.CompareOptions value.

Definition at line 738 of file CompareInfo.cs.

◆ IndexOf() [8/12]

virtual int System.Globalization.CompareInfo.IndexOf	(	string	source,
		string	value,
		int	startIndex,
		CompareOptions	options
	)

virtual

Searches for the specified substring and returns the zero-based index of the first occurrence within the section of the source string that extends from the specified index to the end of the string using the specified T:System.Globalization.CompareOptions value.

Parameters

source	The string to search.
value	The string to locate within source .
startIndex	The zero-based starting index of the search.
options	A value that defines how source and value should be compared. options is either the enumeration value F:System.Globalization.CompareOptions.Ordinal, or a bitwise combination of one or more of the following values: F:System.Globalization.CompareOptions.IgnoreCase, F:System.Globalization.CompareOptions.IgnoreSymbols, F:System.Globalization.CompareOptions.IgnoreNonSpace, F:System.Globalization.CompareOptions.IgnoreWidth, and F:System.Globalization.CompareOptions.IgnoreKanaType.

Returns: The zero-based index of the first occurrence of value , if found, within the section of source that extends from startIndex to the end of source , using the specified comparison options; otherwise, -1. Returns startIndex if value is an ignorable character.

Exceptions

T:System.ArgumentNullException	source is `null`.-or- value is `null`.
T:System.ArgumentOutOfRangeException	startIndex is outside the range of valid indexes for source .
T:System.ArgumentException	options contains an invalid T:System.Globalization.CompareOptions value.

Definition at line 761 of file CompareInfo.cs.

◆ IndexOf() [9/12]

virtual int System.Globalization.CompareInfo.IndexOf	(	string	source,
		char	value,
		int	startIndex,
		int	count
	)

virtual

Searches for the specified character and returns the zero-based index of the first occurrence within the section of the source string that starts at the specified index and contains the specified number of elements.

Parameters

source	The string to search.
value	The character to locate within source .
startIndex	The zero-based starting index of the search.
count	The number of elements in the section to search.

Returns: The zero-based index of the first occurrence of value , if found, within the section of source that starts at startIndex and contains the number of elements specified by count ; otherwise, -1. Returns startIndex if value is an ignorable character.

Exceptions

T:System.ArgumentNullException	source is `null`.
T:System.ArgumentOutOfRangeException	startIndex is outside the range of valid indexes for source .-or- count is less than zero.-or- startIndex and count do not specify a valid section in source .

Definition at line 783 of file CompareInfo.cs.

◆ IndexOf() [10/12]

virtual int System.Globalization.CompareInfo.IndexOf	(	string	source,
		string	value,
		int	startIndex,
		int	count
	)

virtual

Searches for the specified substring and returns the zero-based index of the first occurrence within the section of the source string that starts at the specified index and contains the specified number of elements.

Parameters

source	The string to search.
value	The string to locate within source .
startIndex	The zero-based starting index of the search.
count	The number of elements in the section to search.

Returns: The zero-based index of the first occurrence of value , if found, within the section of source that starts at startIndex and contains the number of elements specified by count ; otherwise, -1. Returns startIndex if value is an ignorable character.

Exceptions

T:System.ArgumentNullException	source is `null`.-or- value is `null`.
T:System.ArgumentOutOfRangeException	startIndex is outside the range of valid indexes for source .-or- count is less than zero.-or- startIndex and count do not specify a valid section in source .

Definition at line 802 of file CompareInfo.cs.

◆ IndexOf() [11/12]

virtual int System.Globalization.CompareInfo.IndexOf	(	string	source,
		char	value,
		int	startIndex,
		int	count,
		CompareOptions	options
	)

virtual

Searches for the specified character and returns the zero-based index of the first occurrence within the section of the source string that starts at the specified index and contains the specified number of elements using the specified T:System.Globalization.CompareOptions value.

Parameters

source	The string to search.
value	The character to locate within source .
startIndex	The zero-based starting index of the search.
count	The number of elements in the section to search.
options	A value that defines how source and value should be compared. options is either the enumeration value F:System.Globalization.CompareOptions.Ordinal, or a bitwise combination of one or more of the following values: F:System.Globalization.CompareOptions.IgnoreCase, F:System.Globalization.CompareOptions.IgnoreSymbols, F:System.Globalization.CompareOptions.IgnoreNonSpace, F:System.Globalization.CompareOptions.IgnoreWidth, and F:System.Globalization.CompareOptions.IgnoreKanaType.

Returns: The zero-based index of the first occurrence of value , if found, within the section of source that starts at startIndex and contains the number of elements specified by count , using the specified comparison options; otherwise, -1. Returns startIndex if value is an ignorable character.

Exceptions

T:System.ArgumentNullException	source is `null`.
T:System.ArgumentOutOfRangeException	startIndex is outside the range of valid indexes for source .-or- count is less than zero.-or- startIndex and count do not specify a valid section in source .
T:System.ArgumentException	options contains an invalid T:System.Globalization.CompareOptions value.

Definition at line 824 of file CompareInfo.cs.

◆ IndexOf() [12/12]

virtual int System.Globalization.CompareInfo.IndexOf	(	string	source,
		string	value,
		int	startIndex,
		int	count,
		CompareOptions	options
	)

virtual

Searches for the specified substring and returns the zero-based index of the first occurrence within the section of the source string that starts at the specified index and contains the specified number of elements using the specified T:System.Globalization.CompareOptions value.

Parameters

source	The string to search.
value	The string to locate within source .
startIndex	The zero-based starting index of the search.
count	The number of elements in the section to search.
options	A value that defines how source and value should be compared. options is either the enumeration value F:System.Globalization.CompareOptions.Ordinal, or a bitwise combination of one or more of the following values: F:System.Globalization.CompareOptions.IgnoreCase, F:System.Globalization.CompareOptions.IgnoreSymbols, F:System.Globalization.CompareOptions.IgnoreNonSpace, F:System.Globalization.CompareOptions.IgnoreWidth, and F:System.Globalization.CompareOptions.IgnoreKanaType.

Returns: The zero-based index of the first occurrence of value , if found, within the section of source that starts at startIndex and contains the number of elements specified by count , using the specified comparison options; otherwise, -1. Returns startIndex if value is an ignorable character.

Exceptions

T:System.ArgumentNullException	source is `null`.-or- value is `null`.
T:System.ArgumentOutOfRangeException	startIndex is outside the range of valid indexes for source .-or- count is less than zero.-or- startIndex and count do not specify a valid section in source .
T:System.ArgumentException	options contains an invalid T:System.Globalization.CompareOptions value.

Definition at line 867 of file CompareInfo.cs.

◆ IsPrefix() [1/2]

virtual bool System.Globalization.CompareInfo.IsPrefix	(	string	source,
		string	prefix,
		CompareOptions	options
	)

virtual

Determines whether the specified source string starts with the specified prefix using the specified T:System.Globalization.CompareOptions value.

Parameters

source	The string to search in.
prefix	The string to compare with the beginning of source .
options	A value that defines how source and prefix should be compared. options is either the enumeration value F:System.Globalization.CompareOptions.Ordinal, or a bitwise combination of one or more of the following values: F:System.Globalization.CompareOptions.IgnoreCase, F:System.Globalization.CompareOptions.IgnoreSymbols, F:System.Globalization.CompareOptions.IgnoreNonSpace, F:System.Globalization.CompareOptions.IgnoreWidth, and F:System.Globalization.CompareOptions.IgnoreKanaType.

Returns: true if the length of prefix is less than or equal to the length of source and source starts with prefix ; otherwise, false.

Exceptions

T:System.ArgumentNullException	source is `null`.-or- prefix is `null`.
T:System.ArgumentException	options contains an invalid T:System.Globalization.CompareOptions value.

Definition at line 525 of file CompareInfo.cs.

◆ IsPrefix() [2/2]

virtual bool System.Globalization.CompareInfo.IsPrefix	(	string	source,
		string	prefix
	)

virtual

Determines whether the specified source string starts with the specified prefix.

Parameters

source	The string to search in.
prefix	The string to compare with the beginning of source .

Returns: true if the length of prefix is less than or equal to the length of source and source starts with prefix ; otherwise, false.

Exceptions

T:System.ArgumentNullException source is null.-or- prefix is null.

Definition at line 559 of file CompareInfo.cs.

◆ IsSortable() [1/2]

static bool System.Globalization.CompareInfo.IsSortable ( char ch )

static

Indicates whether a specified Unicode character is sortable.

Parameters

ch	A Unicode character.

Returns: true if the ch parameter is sortable; otherwise, false.

Definition at line 203 of file CompareInfo.cs.

◆ IsSortable() [2/2]

static bool System.Globalization.CompareInfo.IsSortable ( string text )

static

Indicates whether a specified Unicode string is sortable.

Parameters

text	A string of zero or more Unicode characters.

Returns: true if the str parameter is not an empty string ("") and all the Unicode characters in str are sortable; otherwise, false.

Exceptions

T:System.ArgumentNullException str is null.

Definition at line 216 of file CompareInfo.cs.

◆ IsSuffix() [1/2]

virtual bool System.Globalization.CompareInfo.IsSuffix	(	string	source,
		string	suffix,
		CompareOptions	options
	)

virtual

Determines whether the specified source string ends with the specified suffix using the specified T:System.Globalization.CompareOptions value.

Parameters

source	The string to search in.
suffix	The string to compare with the end of source .
options	A value that defines how source and suffix should be compared. options is either the enumeration value F:System.Globalization.CompareOptions.Ordinal used by itself, or the bitwise combination of one or more of the following values: F:System.Globalization.CompareOptions.IgnoreCase, F:System.Globalization.CompareOptions.IgnoreSymbols, F:System.Globalization.CompareOptions.IgnoreNonSpace, F:System.Globalization.CompareOptions.IgnoreWidth, and F:System.Globalization.CompareOptions.IgnoreKanaType.

Returns: true if the length of suffix is less than or equal to the length of source and source ends with suffix ; otherwise, false.

Exceptions

T:System.ArgumentNullException	source is `null`.-or- suffix is `null`.
T:System.ArgumentException	options contains an invalid T:System.Globalization.CompareOptions value.

Definition at line 577 of file CompareInfo.cs.

◆ IsSuffix() [2/2]

virtual bool System.Globalization.CompareInfo.IsSuffix	(	string	source,
		string	suffix
	)

virtual

Determines whether the specified source string ends with the specified suffix.

Parameters

source	The string to search in.
suffix	The string to compare with the end of source .

Returns: true if the length of suffix is less than or equal to the length of source and source ends with suffix ; otherwise, false.

Exceptions

T:System.ArgumentNullException source is null.-or- suffix is null.

Definition at line 611 of file CompareInfo.cs.

◆ LastIndexOf() [1/12]

virtual int System.Globalization.CompareInfo.LastIndexOf	(	string	source,
		char	value
	)

virtual

Searches for the specified character and returns the zero-based index of the last occurrence within the entire source string.

Parameters

source	The string to search.
value	The character to locate within source .

Returns: The zero-based index of the last occurrence of value , if found, within source ; otherwise, -1.

Exceptions

T:System.ArgumentNullException source is null.

Definition at line 915 of file CompareInfo.cs.

◆ LastIndexOf() [2/12]

virtual int System.Globalization.CompareInfo.LastIndexOf	(	string	source,
		string	value
	)

virtual

Searches for the specified substring and returns the zero-based index of the last occurrence within the entire source string.

Parameters

source	The string to search.
value	The string to locate within source .

Returns: The zero-based index of the last occurrence of value , if found, within source ; otherwise, -1.

Exceptions

T:System.ArgumentNullException source is null.-or- value is null.

Definition at line 932 of file CompareInfo.cs.

◆ LastIndexOf() [3/12]

virtual int System.Globalization.CompareInfo.LastIndexOf	(	string	source,
		char	value,
		CompareOptions	options
	)

virtual

Searches for the specified character and returns the zero-based index of the last occurrence within the entire source string using the specified T:System.Globalization.CompareOptions value.

Parameters

source	The string to search.
value	The character to locate within source .
options	A value that defines how source and value should be compared. options is either the enumeration value F:System.Globalization.CompareOptions.Ordinal, or a bitwise combination of one or more of the following values: F:System.Globalization.CompareOptions.IgnoreCase, F:System.Globalization.CompareOptions.IgnoreSymbols, F:System.Globalization.CompareOptions.IgnoreNonSpace, F:System.Globalization.CompareOptions.IgnoreWidth, and F:System.Globalization.CompareOptions.IgnoreKanaType.

Returns: The zero-based index of the last occurrence of value , if found, within source , using the specified comparison options; otherwise, -1.

Exceptions

T:System.ArgumentNullException	source is `null`.
T:System.ArgumentException	options contains an invalid T:System.Globalization.CompareOptions value.

Definition at line 951 of file CompareInfo.cs.

◆ LastIndexOf() [4/12]

virtual int System.Globalization.CompareInfo.LastIndexOf	(	string	source,
		string	value,
		CompareOptions	options
	)

virtual

Searches for the specified substring and returns the zero-based index of the last occurrence within the entire source string using the specified T:System.Globalization.CompareOptions value.

Parameters

source	The string to search.
value	The string to locate within source .
options	A value that defines how source and value should be compared. options is either the enumeration value F:System.Globalization.CompareOptions.Ordinal, or a bitwise combination of one or more of the following values: F:System.Globalization.CompareOptions.IgnoreCase, F:System.Globalization.CompareOptions.IgnoreSymbols, F:System.Globalization.CompareOptions.IgnoreNonSpace, F:System.Globalization.CompareOptions.IgnoreWidth, and F:System.Globalization.CompareOptions.IgnoreKanaType.

Returns: The zero-based index of the last occurrence of value , if found, within source , using the specified comparison options; otherwise, -1.

Exceptions

T:System.ArgumentNullException	source is `null`.-or- value is `null`.
T:System.ArgumentException	options contains an invalid T:System.Globalization.CompareOptions value.

Definition at line 971 of file CompareInfo.cs.

◆ LastIndexOf() [5/12]

virtual int System.Globalization.CompareInfo.LastIndexOf	(	string	source,
		char	value,
		int	startIndex
	)

virtual

Searches for the specified character and returns the zero-based index of the last occurrence within the section of the source string that extends from the beginning of the string to the specified index.

Parameters

source	The string to search.
value	The character to locate within source .
startIndex	The zero-based starting index of the backward search.

Returns: The zero-based index of the last occurrence of value , if found, within the section of source that extends from the beginning of source to startIndex ; otherwise, -1. Returns startIndex if value is an ignorable character.

Exceptions

T:System.ArgumentNullException	source is `null`.
T:System.ArgumentOutOfRangeException	startIndex is outside the range of valid indexes for source .

Definition at line 989 of file CompareInfo.cs.

◆ LastIndexOf() [6/12]

virtual int System.Globalization.CompareInfo.LastIndexOf	(	string	source,
		string	value,
		int	startIndex
	)

virtual

Searches for the specified substring and returns the zero-based index of the last occurrence within the section of the source string that extends from the beginning of the string to the specified index.

Parameters

source	The string to search.
value	The string to locate within source .
startIndex	The zero-based starting index of the backward search.

Returns: The zero-based index of the last occurrence of value , if found, within the section of source that extends from the beginning of source to startIndex ; otherwise, -1. Returns startIndex if value is an ignorable character.

Exceptions

T:System.ArgumentNullException	source is `null`.-or- value is `null`.
T:System.ArgumentOutOfRangeException	startIndex is outside the range of valid indexes for source .

Definition at line 1004 of file CompareInfo.cs.

◆ LastIndexOf() [7/12]

virtual int System.Globalization.CompareInfo.LastIndexOf	(	string	source,
		char	value,
		int	startIndex,
		CompareOptions	options
	)

virtual

Searches for the specified character and returns the zero-based index of the last occurrence within the section of the source string that extends from the beginning of the string to the specified index using the specified T:System.Globalization.CompareOptions value.

Parameters

source	The string to search.
value	The character to locate within source .
startIndex	The zero-based starting index of the backward search.
options	A value that defines how source and value should be compared. options is either the enumeration value F:System.Globalization.CompareOptions.Ordinal, or a bitwise combination of one or more of the following values: F:System.Globalization.CompareOptions.IgnoreCase, F:System.Globalization.CompareOptions.IgnoreSymbols, F:System.Globalization.CompareOptions.IgnoreNonSpace, F:System.Globalization.CompareOptions.IgnoreWidth, and F:System.Globalization.CompareOptions.IgnoreKanaType.

Returns: The zero-based index of the last occurrence of value , if found, within the section of source that extends from the beginning of source to startIndex , using the specified comparison options; otherwise, -1. Returns startIndex if value is an ignorable character.

Exceptions

T:System.ArgumentNullException	source is `null`.
T:System.ArgumentOutOfRangeException	startIndex is outside the range of valid indexes for source .
T:System.ArgumentException	options contains an invalid T:System.Globalization.CompareOptions value.

Definition at line 1022 of file CompareInfo.cs.

◆ LastIndexOf() [8/12]

virtual int System.Globalization.CompareInfo.LastIndexOf	(	string	source,
		string	value,
		int	startIndex,
		CompareOptions	options
	)

virtual

Searches for the specified substring and returns the zero-based index of the last occurrence within the section of the source string that extends from the beginning of the string to the specified index using the specified T:System.Globalization.CompareOptions value.

Parameters

source	The string to search.
value	The string to locate within source .
startIndex	The zero-based starting index of the backward search.
options	A value that defines how source and value should be compared. options is either the enumeration value F:System.Globalization.CompareOptions.Ordinal, or a bitwise combination of one or more of the following values: F:System.Globalization.CompareOptions.IgnoreCase, F:System.Globalization.CompareOptions.IgnoreSymbols, F:System.Globalization.CompareOptions.IgnoreNonSpace, F:System.Globalization.CompareOptions.IgnoreWidth, and F:System.Globalization.CompareOptions.IgnoreKanaType.

Returns: The zero-based index of the last occurrence of value , if found, within the section of source that extends from the beginning of source to startIndex , using the specified comparison options; otherwise, -1. Returns startIndex if value is an ignorable character.

Exceptions

T:System.ArgumentNullException	source is `null`.-or- value is `null`.
T:System.ArgumentOutOfRangeException	startIndex is outside the range of valid indexes for source .
T:System.ArgumentException	options contains an invalid T:System.Globalization.CompareOptions value.

Definition at line 1041 of file CompareInfo.cs.

◆ LastIndexOf() [9/12]

virtual int System.Globalization.CompareInfo.LastIndexOf	(	string	source,
		char	value,
		int	startIndex,
		int	count
	)

virtual

Searches for the specified character and returns the zero-based index of the last occurrence within the section of the source string that contains the specified number of elements and ends at the specified index.

Parameters

source	The string to search.
value	The character to locate within source .
startIndex	The zero-based starting index of the backward search.
count	The number of elements in the section to search.

Returns: The zero-based index of the last occurrence of value , if found, within the section of source that contains the number of elements specified by count and that ends at startIndex ; otherwise, -1. Returns startIndex if value is an ignorable character.

Exceptions

T:System.ArgumentNullException	source is `null`.
T:System.ArgumentOutOfRangeException	startIndex is outside the range of valid indexes for source .-or- count is less than zero.-or- startIndex and count do not specify a valid section in source .

Definition at line 1059 of file CompareInfo.cs.

◆ LastIndexOf() [10/12]

virtual int System.Globalization.CompareInfo.LastIndexOf	(	string	source,
		string	value,
		int	startIndex,
		int	count
	)

virtual

Searches for the specified substring and returns the zero-based index of the last occurrence within the section of the source string that contains the specified number of elements and ends at the specified index.

Parameters

source	The string to search.
value	The string to locate within source .
startIndex	The zero-based starting index of the backward search.
count	The number of elements in the section to search.

Returns: The zero-based index of the last occurrence of value , if found, within the section of source that contains the number of elements specified by count and that ends at startIndex ; otherwise, -1. Returns startIndex if value is an ignorable character.

Exceptions

T:System.ArgumentNullException	source is `null`.-or- value is `null`.
T:System.ArgumentOutOfRangeException	startIndex is outside the range of valid indexes for source .-or- count is less than zero.-or- startIndex and count do not specify a valid section in source .

Definition at line 1078 of file CompareInfo.cs.

◆ LastIndexOf() [11/12]

virtual int System.Globalization.CompareInfo.LastIndexOf	(	string	source,
		char	value,
		int	startIndex,
		int	count,
		CompareOptions	options
	)

virtual

Searches for the specified character and returns the zero-based index of the last occurrence within the section of the source string that contains the specified number of elements and ends at the specified index using the specified T:System.Globalization.CompareOptions value.

Parameters

source	The string to search.
value	The character to locate within source .
startIndex	The zero-based starting index of the backward search.
count	The number of elements in the section to search.
options	A value that defines how source and value should be compared. options is either the enumeration value F:System.Globalization.CompareOptions.Ordinal, or a bitwise combination of one or more of the following values: F:System.Globalization.CompareOptions.IgnoreCase, F:System.Globalization.CompareOptions.IgnoreSymbols, F:System.Globalization.CompareOptions.IgnoreNonSpace, F:System.Globalization.CompareOptions.IgnoreWidth, and F:System.Globalization.CompareOptions.IgnoreKanaType.

Returns: The zero-based index of the last occurrence of value , if found, within the section of source that contains the number of elements specified by count and that ends at startIndex , using the specified comparison options; otherwise, -1. Returns startIndex if value is an ignorable character.

Exceptions

T:System.ArgumentNullException	source is `null`.
T:System.ArgumentOutOfRangeException	startIndex is outside the range of valid indexes for source .-or- count is less than zero.-or- startIndex and count do not specify a valid section in source .
T:System.ArgumentException	options contains an invalid T:System.Globalization.CompareOptions value.

Definition at line 1100 of file CompareInfo.cs.

◆ LastIndexOf() [12/12]

virtual int System.Globalization.CompareInfo.LastIndexOf	(	string	source,
		string	value,
		int	startIndex,
		int	count,
		CompareOptions	options
	)

virtual

Searches for the specified substring and returns the zero-based index of the last occurrence within the section of the source string that contains the specified number of elements and ends at the specified index using the specified T:System.Globalization.CompareOptions value.

Parameters

source	The string to search.
value	The string to locate within source .
startIndex	The zero-based starting index of the backward search.
count	The number of elements in the section to search.
options	A value that defines how source and value should be compared. options is either the enumeration value F:System.Globalization.CompareOptions.Ordinal, or a bitwise combination of one or more of the following values: F:System.Globalization.CompareOptions.IgnoreCase, F:System.Globalization.CompareOptions.IgnoreSymbols, F:System.Globalization.CompareOptions.IgnoreNonSpace, F:System.Globalization.CompareOptions.IgnoreWidth, and F:System.Globalization.CompareOptions.IgnoreKanaType.

Returns: The zero-based index of the last occurrence of value , if found, within the section of source that contains the number of elements specified by count and that ends at startIndex , using the specified comparison options; otherwise, -1. Returns startIndex if value is an ignorable character.

Exceptions

T:System.ArgumentNullException	source is `null`.-or- value is `null`.
T:System.ArgumentOutOfRangeException	startIndex is outside the range of valid indexes for source .-or- count is less than zero.-or- startIndex and count do not specify a valid section in source .
T:System.ArgumentException	options contains an invalid T:System.Globalization.CompareOptions value.

Definition at line 1155 of file CompareInfo.cs.

◆ ToString()

override string System.Globalization.CompareInfo.ToString ( )

Returns a string that represents the current T:System.Globalization.CompareInfo object.

Returns: A string that represents the current T:System.Globalization.CompareInfo object.

Definition at line 1331 of file CompareInfo.cs.

Member Data Documentation

◆ LCID

int System.Globalization.CompareInfo.LCID => CultureInfo.GetCultureInfo(Name).LCID

Gets the properly formed culture identifier for the current T:System.Globalization.CompareInfo.

Returns: The properly formed culture identifier for the current T:System.Globalization.CompareInfo.

Definition at line 86 of file CompareInfo.cs.

Property Documentation

◆ Name

virtual string System.Globalization.CompareInfo.Name

get

Gets the name of the culture used for sorting operations by this T:System.Globalization.CompareInfo object.

Returns: The name of a culture.

Definition at line 72 of file CompareInfo.cs.

◆ Version

SortVersion? System.Globalization.CompareInfo.Version

get

Gets information about the version of Unicode used for comparing and sorting strings.

Returns: An object that contains information about the Unicode version used for comparing and sorting strings.

Definition at line 102 of file CompareInfo.cs.

The documentation for this class was generated from the following file:

D:/All cs/System.Globalization/CompareInfo.cs

Public Member Functions

Static Public Member Functions

Public Attributes

Properties

Detailed Description

Member Function Documentation

◆ Compare() [1/6]

◆ Compare() [2/6]

◆ Compare() [3/6]

◆ Compare() [4/6]

◆ Compare() [5/6]

◆ Compare() [6/6]

◆ Equals()

◆ GetCompareInfo() [1/4]

◆ GetCompareInfo() [2/4]

◆ GetCompareInfo() [3/4]

◆ GetCompareInfo() [4/4]

◆ GetHashCode() [1/2]

◆ GetHashCode() [2/2]

◆ GetSortKey() [1/2]

◆ GetSortKey() [2/2]

◆ IndexOf() [1/12]

◆ IndexOf() [2/12]

◆ IndexOf() [3/12]

◆ IndexOf() [4/12]

◆ IndexOf() [5/12]

◆ IndexOf() [6/12]

◆ IndexOf() [7/12]

◆ IndexOf() [8/12]

◆ IndexOf() [9/12]

◆ IndexOf() [10/12]

◆ IndexOf() [11/12]

◆ IndexOf() [12/12]

◆ IsPrefix() [1/2]

◆ IsPrefix() [2/2]

◆ IsSortable() [1/2]

◆ IsSortable() [2/2]

◆ IsSuffix() [1/2]

◆ IsSuffix() [2/2]

◆ LastIndexOf() [1/12]

◆ LastIndexOf() [2/12]

◆ LastIndexOf() [3/12]

◆ LastIndexOf() [4/12]

◆ LastIndexOf() [5/12]

◆ LastIndexOf() [6/12]

◆ LastIndexOf() [7/12]

◆ LastIndexOf() [8/12]

◆ LastIndexOf() [9/12]

◆ LastIndexOf() [10/12]

◆ LastIndexOf() [11/12]

◆ LastIndexOf() [12/12]

◆ ToString()

Member Data Documentation

◆ LCID

Property Documentation

◆ Name

◆ Version