public void BindInBillDetail()
 {
     detaildt = inbill.GetInBillDetail(PrimaryKey, pageIndex2, pageSize2, OrderByFields, this.lblBillNo.Text);
     if (detaildt.Rows.Count == 0)
     {
         this.hdnDetailRowIndex.Value = "0";
         this.lblMsg.Visible          = true;
     }
     else
     {
         this.lblMsg.Visible = false;
     }
     this.dgDetail.DataSource = detaildt;
     this.dgDetail.DataBind();
 }