Gets or sets the denied security permission, permission set, or permission set collection that caused a demand to fail.
Assembly: mscorlib (in mscorlib.dll)
This property contains the denied permission, permission set, or permission set collection that caused the security check to fail. It is null for exceptions that are not caused by a Deny. The property is of type Object because it can contain a permission, a permission set, or a permission set collection. To test the run-time type of this property, you can use the GetType method or a specific language operator, such as the is operator in C# or the TypeOf operator in Visual Basic.
The following code example shows the use of the property to display the denied security permission, permission set, or permission set collection that caused a demand to fail. This code example is part of a larger example provided for the SecurityException class.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.