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UrlIdentityPermission::Union Method

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

Namespace:  System.Security.Permissions
Assembly:  mscorlib (in mscorlib.dll)
public:
virtual IPermission^ Union(
	IPermission^ target
) override

Parameters

target
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
ArgumentException

The target parameter is not nullptr and is not of the same type as the current permission.

-or-

The Url property is not a valid URL.

-or-

The two permissions are not equal and one is not a subset of the other.

The result of a call to the Union method is a permission that represents access to the URL as represented by the current permission, as well as access to the URL as represented by the specified permission.

The UrlIdentityPermission class supports set operations IsSubsetOf, Intersect, and Union) only when the current permission is equal to the specified permission, or when one of the permissions uses the wildcard operator ("*") and one is a subset of the other.

.NET Framework

Supported in: 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 Phone 8.1, Windows Phone 8, 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.

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