SmtpPermission.Intersect(IPermission) Method

Definition

Namespace:

System.Net.Mail

Assembly:

System.Security.Permissions.dll

Source:

SmtpPermission.cs

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

C#

public override System.Security.IPermission Intersect(System.Security.IPermission target);

Parameters

target

IPermission

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

Returns

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.

Exceptions

ArgumentException

target is not an SmtpPermission.

Examples

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.

C#

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

Remarks

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.

Applies to