See Also: ExportAttribute Members
This attribute is applied to properties and methods in classes that derive from MonoTouch.Foundation.NSObject to export the value to the Objective-C world. This can be used either to respond to messages or to override an Objective-C method.
C# Example
public class Test : SomeBaseClass {
    [Export ("setText:withFont:")]
    public void SetText (string text, string font)
    {
    }
}