CodeAccessPermission.IsSubsetOf Method
When implemented by a derived class, determines whether the current permission is a subset of the specified permission.
[Visual Basic] Public MustOverride Function IsSubsetOf( _ ByVal target As IPermission _ ) As Boolean Implements IPermission.IsSubsetOf [C#] public abstract bool IsSubsetOf( IPermission target ); [C++] public: virtual bool IsSubsetOf( IPermission* target ) = 0; [JScript] public abstract function IsSubsetOf( target : IPermission ) : Boolean;
Parameters
- target
- A permission that is to be tested for the subset relationship. This permission must be of the same type as the current permission.
Return Value
true if the current permission is a subset of the specified permission; otherwise, false.
Implements
Exceptions
| Exception Type | Condition |
|---|---|
| ArgumentException | The target parameter is not a null reference (Nothing in Visual Basic) and is not of the same type as the current permission. |
Remarks
The current permission is a subset of the specified permission if the current permission specifies a set of operations that is wholly contained by the specified permission. For example, a permission that represents access to C:\example.txt is a subset of a permission that represents access to C:\. If this method returns true, the current permission represents no more access to the protected resource than does the specified permission.
Notes to Inheritors: You must implement this method in a derived class.
Requirements
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