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SmtpPermission::Union Method

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

Namespace:  System.Net.Mail
Assembly:  System (in System.dll)

public:
virtual IPermission^ Union(
	IPermission^ target
) override

Parameters

target
Type: System.Security::IPermission

An IPermission to combine with the current permission.

Return Value

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

Implements

IPermission::Union(IPermission)

ExceptionCondition
ArgumentException

target is not an SmtpPermission.

The Union method returns a permission that represents all the states represented by both the current permission and the specified permission. Any demand that passes either permission passes their union.

The following example creates a permission object that is the union of two permission objects.

static SmtpPermission^ UnionWithFull(
    SmtpPermission^ permission)
{
    SmtpPermission^ allAccess = 
        gcnew SmtpPermission(PermissionState::Unrestricted);
    return (SmtpPermission^) permission->Union(allAccess);
}

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
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