Defines an indexer, size property, and Boolean search method for data structures that map keys to T:System.Collections.Generic.IEnumerable`1 sequences of values. More...

Inheritance diagram for System.Linq.ILookup< TKey, TElement >:

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Collaboration diagram for System.Linq.ILookup< TKey, TElement >:

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Public Member Functions
bool	Contains (TKey key)
	Determines whether a specified key exists in the T:System.Linq.ILookup`2. More...

Public Member Functions inherited from System.Collections.IEnumerable
IEnumerator	GetEnumerator ()
	Returns an enumerator that iterates through a collection. More...

Properties
int	Count `[get]`
	Gets the number of key/value collection pairs in the T:System.Linq.ILookup`2. More...

IEnumerable< TElement >	this[TKey key] `[get]`
	Gets the T:System.Collections.Generic.IEnumerable`1 sequence of values indexed by a specified key. More...

Detailed Description

Defines an indexer, size property, and Boolean search method for data structures that map keys to T:System.Collections.Generic.IEnumerable`1 sequences of values.

Template Parameters

TKey	The type of the keys in the T:System.Linq.ILookup`2.
TElement	The type of the elements in the T:System.Collections.Generic.IEnumerable`1 sequences that make up the values in the T:System.Linq.ILookup`2.

Definition at line 10 of file ILookup.cs.

Member Function Documentation

◆ Contains()

bool System.Linq.ILookup< TKey, TElement >.Contains ( TKey key )

Determines whether a specified key exists in the T:System.Linq.ILookup`2.

Parameters

key	The key to search for in the T:System.Linq.ILookup`2.

Returns: true if key is in the T:System.Linq.ILookup`2; otherwise, false.

Implemented in System.Linq.Lookup< TKey, TElement >.

Property Documentation

◆ Count

int System.Linq.ILookup< TKey, TElement >.Count

get

Gets the number of key/value collection pairs in the T:System.Linq.ILookup`2.

Returns: The number of key/value collection pairs in the T:System.Linq.ILookup`2.

Definition at line 16 of file ILookup.cs.

◆ this[TKey key]

IEnumerable<TElement> System.Linq.ILookup< TKey, TElement >.this[TKey key]

get

Gets the T:System.Collections.Generic.IEnumerable`1 sequence of values indexed by a specified key.

Parameters

key	The key of the desired sequence of values.

Returns: The T:System.Collections.Generic.IEnumerable`1 sequence of values indexed by the specified key.

Definition at line 26 of file ILookup.cs.

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

D:/All cs/System.Linq/ILookup.cs