partial void DeletelesssonPlanStep(lesssonPlanStep instance);
 partial void InsertlesssonPlanStep(lesssonPlanStep instance);
 partial void UpdatelesssonPlanStep(lesssonPlanStep instance);
 public bool isLessonStepAdded(int stepID, int LessonplanID)
 {
     lesssonPlanStep lps = new lesssonPlanStep() {
         lessonPlan_ID = LessonplanID,
         step_ID = stepID
     };
     try {
         MOE_DB.lesssonPlanSteps.InsertOnSubmit( lps );
         MOE_DB.SubmitChanges();
         return true;
     }
     catch (Exception ex) {
         return false;
     }
 }