PermissionSet.IsSubsetOf Method (PermissionSet)


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Determines whether the current PermissionSet is a subset of the specified PermissionSet.

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

Public Function IsSubsetOf (
	target As PermissionSet
) As Boolean


Type: System.Security.PermissionSet

The permission set to test for the subset relationship. This must be either a PermissionSet or a NamedPermissionSet.

Return Value

Type: System.Boolean

true if the current PermissionSet is a subset of the target parameter; otherwise, false.

A PermissionSet is a subset of the target PermissionSet if all demands that succeed for the PermissionSet also succeed for the target. That is, the target contains at least the permissions contained in the subset.

The following code example shows the use of the IsSubsetOf method. This code example is part of a larger example provided for the PermissionSet class.

' Create a second permission set and compare it to the first permission set.
ps2.AddPermission(New EnvironmentPermission(EnvironmentPermissionAccess.Read, "USERNAME"))
ps2.AddPermission(New EnvironmentPermission(EnvironmentPermissionAccess.Write, "COMPUTERNAME"))
Console.WriteLine("Permissions in first permission set:")
Dim list As IEnumerator = ps1.GetEnumerator()
While list.MoveNext()
End While
Console.WriteLine("Second permission IsSubsetOf first permission = " & ps2.IsSubsetOf(ps1))

.NET Framework
Available since 1.1
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