partial void DeletelessonPlanMethod(lessonPlanMethod instance);
 partial void InsertlessonPlanMethod(lessonPlanMethod instance);
 partial void UpdatelessonPlanMethod(lessonPlanMethod instance);
 public bool isLessonplanMethodAdded( int lessonplanID, int methodID )
 {
     lessonPlanMethod lpm = new lessonPlanMethod() {
         lessonPlan_ID = lessonplanID,
         method_ID = methodID
     };
     try {
         MOE_DB.lessonPlanMethods.InsertOnSubmit( lpm );
         MOE_DB.SubmitChanges();
         return true;
     }
     catch (Exception ex) {
         return false;
     }
 }