public static void RemoveSource(this IAttSource e)
 {
     MeiAtt_controller.RemoveAttribute(e, "source");
 }
 public static bool HasSource(this IAttSource e)
 {
     return(MeiAtt_controller.HasAttribute(e, "source"));
 }
 public static XAttribute GetSourceAttribute(this IAttSource e)
 {
     return(MeiAtt_controller.GetAttribute(e, "source"));
 }
 public static string GetSourceValue(this IAttSource e)
 {
     return(MeiAtt_controller.GetAttributeValue(e, "source"));
 }
 public static void SetSource(this IAttSource e, string _val)
 {
     MeiAtt_controller.SetAttribute(e, "source", _val);
 }