Controls rights to access Domain Name System (DNS) servers on the network. More...

Inheritance diagram for System.Net.DnsPermission:

Collaboration diagram for System.Net.DnsPermission:

Public Member Functions
	DnsPermission (PermissionState state)
	Creates a new instance of the T:System.Net.DnsPermission class that either allows unrestricted DNS access or disallows DNS access. More...

bool	IsUnrestricted ()
	Checks the overall permission state of the object. More...

override IPermission	Copy ()
	Creates an identical copy of the current permission instance. More...

override IPermission	Union (IPermission target)
	Creates a permission instance that is the union of the current permission instance and the specified permission instance. More...

override IPermission	Intersect (IPermission target)
	Creates a permission instance that is the intersection of the current permission instance and the specified permission instance. More...

override bool	IsSubsetOf (IPermission target)
	Determines whether the current permission instance is a subset of the specified permission instance. More...

override void	FromXml (SecurityElement securityElement)
	Reconstructs a T:System.Net.DnsPermission instance from an XML encoding. More...

override SecurityElement	ToXml ()
	Creates an XML encoding of a T:System.Net.DnsPermission instance and its current state. More...

Public Member Functions inherited from System.Security.CodeAccessPermission
void	Demand ()
	Forces a T:System.Security.SecurityException at run time if all callers higher in the call stack have not been granted the permission specified by the current instance. More...

void	Assert ()
	Declares that the calling code can access the resource protected by a permission demand through the code that calls this method, even if callers higher in the stack have not been granted permission to access the resource. Using M:System.Security.CodeAccessPermission.Assert can create security issues. More...

void	Deny ()
	Prevents callers higher in the call stack from using the code that calls this method to access the resource specified by the current instance. More...

void	PermitOnly ()
	Prevents callers higher in the call stack from using the code that calls this method to access all resources except for the resource specified by the current instance. More...

override string	ToString ()
	Creates and returns a string representation of the current permission object. More...

override bool	Equals (object obj)
	Determines whether the specified T:System.Security.CodeAccessPermission object is equal to the current T:System.Security.CodeAccessPermission. More...

override int	GetHashCode ()
	Gets a hash code for the T:System.Security.CodeAccessPermission object that is suitable for use in hashing algorithms and data structures such as a hash table. More...

Additional Inherited Members
Static Public Member Functions inherited from System.Security.CodeAccessPermission
static void	RevertAssert ()
	Causes any previous M:System.Security.CodeAccessPermission.Assert for the current frame to be removed and no longer in effect. More...

static void	RevertDeny ()
	Causes any previous M:System.Security.CodeAccessPermission.Deny for the current frame to be removed and no longer in effect. More...

static void	RevertPermitOnly ()
	Causes any previous M:System.Security.CodeAccessPermission.PermitOnly for the current frame to be removed and no longer in effect. More...

static void	RevertAll ()
	Causes all previous overrides for the current frame to be removed and no longer in effect. More...

Detailed Description

Controls rights to access Domain Name System (DNS) servers on the network.

Definition at line 8 of file DnsPermission.cs.

Constructor & Destructor Documentation

◆ DnsPermission()

System.Net.DnsPermission.DnsPermission ( PermissionState state )

Creates a new instance of the T:System.Net.DnsPermission class that either allows unrestricted DNS access or disallows DNS access.

Parameters

state One of the T:System.Security.Permissions.PermissionState values.

Exceptions

T:System.ArgumentException state is not a valid T:System.Security.Permissions.PermissionState value.

Definition at line 16 of file DnsPermission.cs.

Member Function Documentation

◆ Copy()

override IPermission System.Net.DnsPermission.Copy ( )

virtual

Creates an identical copy of the current permission instance.

Returns: A new instance of the T:System.Net.DnsPermission class that is an identical copy of the current instance.

Implements System.Security.CodeAccessPermission.

Definition at line 36 of file DnsPermission.cs.

◆ FromXml()

override void System.Net.DnsPermission.FromXml ( SecurityElement securityElement )

virtual

Reconstructs a T:System.Net.DnsPermission instance from an XML encoding.

Parameters

securityElement The XML encoding to use to reconstruct the T:System.Net.DnsPermission instance.

Exceptions

T:System.ArgumentNullException	securityElement is `null`.
T:System.ArgumentException	securityElement is not a T:System.Net.DnsPermission element.

Implements System.Security.CodeAccessPermission.

Definition at line 113 of file DnsPermission.cs.

◆ Intersect()

override IPermission System.Net.DnsPermission.Intersect ( IPermission target )

virtual

Creates a permission instance that is the intersection of the current permission instance and the specified permission instance.

Parameters

target The T:System.Net.DnsPermission instance to intersect with the current instance.

Returns: A T:System.Net.DnsPermission instance that represents the intersection of the current T:System.Net.DnsPermission instance with the specified T:System.Net.DnsPermission instance, or null if the intersection is empty. If both the current instance and target are unrestricted, this method returns a new T:System.Net.DnsPermission instance that is unrestricted; otherwise, it returns null.

Exceptions

T:System.ArgumentException target is neither a T:System.Net.DnsPermission nor null.

Implements System.Security.CodeAccessPermission.

Definition at line 65 of file DnsPermission.cs.

◆ IsSubsetOf()

override bool System.Net.DnsPermission.IsSubsetOf ( IPermission target )

virtual

Determines whether the current permission instance is a subset of the specified permission instance.

Parameters

target The second T:System.Net.DnsPermission instance to be tested for the subset relationship.

Returns: false if the current instance is unrestricted and target is either null or unrestricted; otherwise, true.

Exceptions

T:System.ArgumentException target is neither a T:System.Net.DnsPermission nor null.

Implements System.Security.CodeAccessPermission.

Definition at line 89 of file DnsPermission.cs.

◆ IsUnrestricted()

bool System.Net.DnsPermission.IsUnrestricted ( )

Checks the overall permission state of the object.

Returns: true if the T:System.Net.DnsPermission instance was created with F:System.Security.Permissions.PermissionState.Unrestricted; otherwise, false.

Implements System.Security.Permissions.IUnrestrictedPermission.

Definition at line 29 of file DnsPermission.cs.

◆ ToXml()

override SecurityElement System.Net.DnsPermission.ToXml ( )

virtual

Creates an XML encoding of a T:System.Net.DnsPermission instance and its current state.

Returns: A T:System.Security.SecurityElement instance that contains an XML-encoded representation of the security object, including state information.

Implements System.Security.CodeAccessPermission.

Definition at line 138 of file DnsPermission.cs.

◆ Union()

override IPermission System.Net.DnsPermission.Union ( IPermission target )

virtual

Creates a permission instance that is the union of the current permission instance and the specified permission instance.

Parameters

target The T:System.Net.DnsPermission instance to combine with the current instance.

Returns: A T:System.Net.DnsPermission instance that represents the union of the current T:System.Net.DnsPermission instance with the specified T:System.Net.DnsPermission instance. If target is null, this method returns a copy of the current instance. If the current instance or target is unrestricted, this method returns a T:System.Net.DnsPermission instance that is unrestricted; otherwise, it returns a T:System.Net.DnsPermission instance that is restricted.

Exceptions

T:System.ArgumentException target is neither a T:System.Net.DnsPermission nor null.

Reimplemented from System.Security.CodeAccessPermission.

Definition at line 46 of file DnsPermission.cs.

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

D:/All cs/System.Net/DnsPermission.cs

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ DnsPermission()

Member Function Documentation

◆ Copy()

◆ FromXml()

◆ Intersect()

◆ IsSubsetOf()

◆ IsUnrestricted()

◆ ToXml()

◆ Union()