public static bool AddNew(HDS_StandardRating Rat)
 {
     try
     {
         ExamSystemManagerDBEntities exMana = new ExamSystemManagerDBEntities();
         exMana.AddToHDS_StandardRating(Rat);
         exMana.SaveChanges();
     }
     catch (Exception e)
     {
         errMsg = e.Message;
         return false;
     }
     errMsg = "";
     return true;
 }
 public static bool Update(HDS_StandardRating Rat)
 {
     try
     {
         ExamSystemManagerDBEntities exMana = new ExamSystemManagerDBEntities();
         HDS_StandardRating obj = exMana.HDS_StandardRating.First(temp => temp.Iex_ID == Rat.Iex_ID);
         obj.Iex_ID = Rat.Iex_ID;
         obj.Rat_FromMark = Rat.Rat_FromMark;
         obj.Rat_ToMark = Rat.Rat_ToMark;
         obj.Rat_Name = Rat.Rat_Name;
         obj.Rat_Description = Rat.Rat_Description;
         exMana.SaveChanges();
     }
     catch (Exception e)
     {
         errMsg = e.Message;
         return false;
     }
     errMsg = "";
     return true;
 }
 /// <summary>
 /// Deprecated Method for adding a new object to the HDS_StandardRating EntitySet. Consider using the .Add method of the associated ObjectSet&lt;T&gt; property instead.
 /// </summary>
 public void AddToHDS_StandardRating(HDS_StandardRating hDS_StandardRating)
 {
     base.AddObject("HDS_StandardRating", hDS_StandardRating);
 }
 /// <summary>
 /// Create a new HDS_StandardRating object.
 /// </summary>
 /// <param name="rat_ID">Initial value of the Rat_ID property.</param>
 public static HDS_StandardRating CreateHDS_StandardRating(global::System.Int32 rat_ID)
 {
     HDS_StandardRating hDS_StandardRating = new HDS_StandardRating();
     hDS_StandardRating.Rat_ID = rat_ID;
     return hDS_StandardRating;
 }