PrincipalPermission.Union Method (IPermission)

 

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 IPermission Union(
	IPermission other
)

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.

Exception Condition
ArgumentException

The other parameter is an object that is not of the same type as the current permission.

Union creates a permission representing the criteria of a given set of individual PrincipalPermission objects. It is useful for compactly representing a set of conditions to test. For example, with the declarations

PrincipalPermission ppBob = new PrincipalPermission("Bob", "Administrator");
PrincipalPermission ppLouise = new PrincipalPermission("Louise", "Administrator");

(ppBob.Union(ppLouise)).Demand() will succeed if the current principal represents Bob in the role of Administrator or Louise in the role of Administrator.

.NET Framework
Available since 1.1
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