protected void btn_generate_Click(object sender, EventArgs e) { string edate = ""; lblamount.Visible = true; lbltotalamount.Visible = true; if (txt_enddate.Text == "") { edate = txt_startdate.Text; } else { edate = txt_enddate.Text; } List <USP_GetROCTotalAmountResult> RocTotalAmount = Licensing_Details.GetRocTotalAmount(Convert.ToDateTime(txt_startdate.Text), Convert.ToDateTime(edate), Convert.ToInt32(rdblst.SelectedValue), 1); if (RocTotalAmount[0].TotalAmount != null) { lbltotalamount.Text = RocTotalAmount[0].TotalAmount; } string js = "BindRocData();"; ScriptManager.RegisterStartupScript(Page, GetType(), "scr", js, true); }