private void detach_tblProducts(tblProduct entity)
 {
     this.SendPropertyChanging();
     entity.tblCategory = null;
 }
 private void attach_tblProducts(tblProduct entity)
 {
     this.SendPropertyChanging();
     entity.tblUser = this;
 }
 partial void UpdatetblProduct(tblProduct instance);
 partial void DeletetblProduct(tblProduct instance);
 partial void InserttblProduct(tblProduct instance);