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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 override IPermission Intersect(
	IPermission target


Type: System.Security.IPermission

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

Return Value

Type: System.Security.IPermission
An SmtpPermission that represents the intersection of the current permission and the specified permission. Returns null if the intersection is empty or target is null.




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.

public static SmtpPermission IntersectionWithFull(SmtpPermission permission)
    SmtpPermission allAccess = new 
    return (SmtpPermission) permission.Intersect(allAccess);

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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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