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SmtpPermission::IsSubsetOf Method

Returns a value indicating whether the current permission is a subset of the specified permission.

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

public:
virtual bool IsSubsetOf(
	IPermission^ target
) override

Parameters

target
Type: System.Security::IPermission
An IPermission that is to be tested for the subset relationship. This permission must be of the same type as the current permission.

Return Value

Type: System::Boolean
true if the current permission is a subset of the specified permission; otherwise, false.

Implements

IPermission::IsSubsetOf(IPermission)

ExceptionCondition
ArgumentException

target is not an SmtpPermission.

The current permission is a subset of the specified permission if the current permission specifies a state that is wholly contained by the specified permission. If this method returns true, the current permission represents no more access to the protected resource than does the specified permission.

The following code example displays the subset relationship between two permissions.


static bool CheckSubSet(
    SmtpPermission^ permission)
{
    SmtpPermission^ allAccess = 
        gcnew SmtpPermission(PermissionState::Unrestricted);
    return permission->IsSubsetOf(allAccess);
}


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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