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PermissionSet.RemovePermission Method

Removes a permission of a certain type from the set.

Namespace:  System.Security
Assembly:  mscorlib (in mscorlib.dll)

public IPermission RemovePermission(
	Type permClass
)

Parameters

permClass
Type: System.Type

The Type of permission to delete.

Return Value

Type: System.Security.IPermission
The permission removed from the set.

Important noteImportant Note:

You cannot remove permissions from an unrestricted permission set. The permission set remains unrestricted after you attempt to remove the permission, and an exception is not thrown.

The following C# code attempts to remove the FileIOPermission from the FullTrust permission set, but the permission is not removed.

PolicyLevel myPol = PolicyLevel.CreateAppDomainLevel();
PermissionSet myPermSet = myPol.GetNamedPermissionSet("FullTrust");
myPermSet.RemovePermission(typeof(FileIOPermission));

The following code example shows the use of the RemovePermission method to remove a FileIOPermission from a permission set. This code example is part of a larger example provided for the PermissionSet class.

// Remove FileIOPermission from the permission set.
ps5.RemovePermission(typeof(FileIOPermission));
Console.WriteLine("The last permission set after removing FileIOPermission = "
    + ps5.ToString());

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.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
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