SmtpPermission.Intersect Method

Creates and returns a permission that is the intersection of the current permission and the specified permission.

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

public:
virtual IPermission^ Intersect (
	IPermission^ target
) override
public IPermission Intersect (
	IPermission target
)
public override function Intersect (
	target : IPermission
) : IPermission
Not applicable.

Parameters

target

An IPermission to intersect with the current permission. It must be of the same type as the current permission.

Return Value

An SmtpPermission that represents the intersection of the current permission and the specified permission. Returns a null reference (Nothing in Visual Basic) if the intersection is empty or target is a null reference (Nothing in Visual Basic).

Exception typeCondition

ArgumentException

target is not an SmtpPermission.

The intersection of two permissions is a permission that describes the state they describe in common. Only a demand that passes both original permissions will pass the intersection.

The following code example creates a permission object that is the intersection of an existing permission with an object that grants full access to SMTP servers.

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

public static SmtpPermission IntersectionWithFull(SmtpPermission permission)
{
    SmtpPermission allAccess = new SmtpPermission(
        System.Security.Permissions.PermissionState.Unrestricted);
    return (SmtpPermission)(permission.Intersect(allAccess));
} //IntersectionWithFull

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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