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CodeAccessPermission.Union Method

When overridden in a derived class, creates a permission that is the union of the current permission and the specified permission.

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

public function Union(
	other : IPermission
) : IPermission

Parameters

other
Type: System.Security.IPermission

A permission to combine with the current permission. It must be of 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
NotSupportedException

The other parameter is not a null reference (Nothing in Visual Basic). This method is only supported at this level when passed a null reference (Nothing in Visual Basic).

The result of a call to Union is a permission that represents all the operations represented by both the current permission and the specified permission. Any demand that passes either permission passes their union.

Notes to Inheritors:

You must override this method in a derived class. You should return a copy of the permission if the value of the other parameter is a null reference (Nothing in Visual Basic).

The following code example shows an override of the Union method. This code example is part of a larger example provided for the CodeAccessPermission class.

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

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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