UIPermission.Union Method

Creates a permission that is the union of the permission and the specified permission.

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

abstract Union : 
        target:IPermission -> IPermission  
override Union : 
        target:IPermission -> IPermission

Parameters

target
Type: System.Security.IPermission

A permission to combine with the current permission. It must be the same type as the current permission.

Return Value

Type: System.Security.IPermission
A new permission that represents the union of the current permission and the specified permission.

Implements

IPermission.Union(IPermission)

ExceptionCondition
ArgumentException

The target parameter is not a null reference (Nothing in Visual Basic) and is not of the same type as the current permission.

The result of a call to Union is a permission that represents all the operations represented by the current permission as well as all the operations represented by the specified permission. Specifically, it represents the most permissive values of UIPermissionWindow and UIPermissionClipboard from those in the current permission and the specified permission.

The following code example shows the behavior of the Union method. This example is part of a larger example provided for the UIPermission class.

NoteNote

The code example is intended to show the behavior of the method, not to demonstrate its use. In general, the methods of permission classes are used by the security infrastructure; they are not typically used in applications.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, 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.

Was this page helpful?
(1500 characters remaining)
Thank you for your feedback
Show:
© 2014 Microsoft