PermissionSet.RemovePermission Method
Removes a permission of a certain type from the set.
Namespace: System.Security
Assembly: mscorlib (in mscorlib.dll)
Parameters
- permClass
- Type: System.Type
The type of permission to delete.
| Exception | Condition |
|---|---|
| InvalidOperationException | The method is called from a ReadOnlyPermissionSet. |
.gif?cs-save-lang=1&cs-lang=fsharp "Important note") Important |
|---|
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));
When you inherit from PermissionSet, you can change the behavior of the RemovePermission method by overriding the RemovePermissionImpl method.
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.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
