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CodeAccessPermission.Intersect Method

When implemented by a derived class, creates and returns a permission that is the intersection of the current permission and the specified permission.

[Visual Basic]
Public MustOverride Function Intersect( _
   ByVal target As IPermission _
) As IPermission Implements IPermission.Intersect
public abstract IPermission Intersect(
 IPermission target
public: virtual IPermission* Intersect(
 IPermission* target
) = 0;
public abstract function Intersect(
   target : IPermission
) : IPermission;


A permission to intersect with the current permission. It must be of the same type as the current permission.

Return Value

A new permission that represents the intersection of the current permission and the specified permission. This new permission is a null reference (Nothing in Visual Basic) if the intersection is empty.




Exception Type Condition
ArgumentException The target parameter is not a null reference (Nothing in Visual Basic) and is not an instance of the same class as the current permission.


The intersection of two permissions is a permission that describes the set of operations they both describe in common. Only a demand that passes both original permissions will pass the intersection.

Notes to Inheritors:  You must implement this method in a derived class.


Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Common Language Infrastructure (CLI) Standard

See Also

CodeAccessPermission Class | CodeAccessPermission Members | System.Security Namespace