//Delete
        public void Delete(string MATFRIGRP)
        {
            DOM_SAP_MATFRIGRP domSapMatFriGrp = db.DOM_SAP_MATFRIGRPs.Find(MATFRIGRP);

            db.DOM_SAP_MATFRIGRPs.Remove(domSapMatFriGrp);
            Save();
        }
 //Update
 public void Update(DOM_SAP_MATFRIGRP DOM_SAP_MATFRIGRP)
 {
     objDb.Update(DOM_SAP_MATFRIGRP);
 }
 //Insert
 public void Insert(DOM_SAP_MATFRIGRP DOM_SAP_MATFRIGRP)
 {
     objDb.Insert(DOM_SAP_MATFRIGRP);
 }
 //Update
 public void Update(DOM_SAP_MATFRIGRP DOM_SAP_MATFRIGRP)
 {
     objDb.Update(DOM_SAP_MATFRIGRP);
 }
 //Insert
 public void Insert(DOM_SAP_MATFRIGRP DOM_SAP_MATFRIGRP)
 {
     objDb.Insert(DOM_SAP_MATFRIGRP);
 }
 //Update
 public void Update(DOM_SAP_MATFRIGRP DOM_SAP_MATFRIGRP)
 {
     db.Entry(DOM_SAP_MATFRIGRP).State = EntityState.Modified;
     Save();
 }
 //Insert
 public void Insert(DOM_SAP_MATFRIGRP DOM_SAP_MATFRIGRP)
 {
     db.DOM_SAP_MATFRIGRPs.Add(DOM_SAP_MATFRIGRP);
     Save();
 }