protected void AddNewDrug_Click(object sender, EventArgs e)
 {
     if (IsValid)
     {
         TableAddDrug.Visible = false;
         String quantity = Quantity.Text;
         int idpre = Convert.ToInt32(PresID.Text);
         int iddrug = Convert.ToInt32(DrugID.Text);
         var drug = new LabOrderDetail() { LabOrderID = idpre, MedicalServiceID = iddrug, Result = quantity };
         DataBaseAllDataContext dataAll = new DataBaseAllDataContext();
         dataAll.LabOrderDetails.InsertOnSubmit(drug);
         dataAll.SubmitChanges();
         GridDrug.DataBind();
     }
 }
 partial void DeleteLabOrderDetail(LabOrderDetail instance);
 partial void UpdateLabOrderDetail(LabOrderDetail instance);
 partial void InsertLabOrderDetail(LabOrderDetail instance);
		private void detach_LabOrderDetails(LabOrderDetail entity)
		{
			this.SendPropertyChanging();
			entity.MedicalService = null;
		}
		private void detach_LabOrderDetails(LabOrderDetail entity)
		{
			this.SendPropertyChanging();
			entity.LabOrder = null;
		}