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PermissionSet.Demand Method

Forces a SecurityException at run time if all callers higher in the call stack have not been granted the permissions specified by the current instance.

Namespace:  System.Security
Assembly:  mscorlib (in mscorlib.dll)
public void Demand()

Implements

IStackWalk.Demand()
ExceptionCondition
SecurityException

A caller in the call chain does not have the permission demanded.

Use Demand on a PermissionSet to ensure that all callers have all permissions in the set with one operation.

The permissions of the code that calls this method are not examined; the check begins from the immediate caller of that code and proceeds up the stack. The call stack is typically represented as growing down, so that methods higher in the call stack call methods lower in the call stack. Demand succeeds only if no SecurityException is thrown.

If the PermissionSet contains permissions that do not inherit from CodeAccessPermission, the Demand methods of those permissions are called as well.

The following code example shows the use of the Demand method to demand all the permissions in a permission set. This code example is part of a larger example provided for the PermissionSet class.


// Demand all the permissions in the set.
Console.WriteLine("Demand all permissions.");
ps1.Demand();


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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