protected void btnUpdate_Click(object sender, EventArgs e)
        {
            try
            {
                //HRM_TimeInoutOTCalculation objOTperiodic = new HRM_TimeInoutOTCalculation();
                //objOTperiodic.DateFrom = Convert.ToDateTime(txtDateFrom.Text);
                //objOTperiodic.DateTo = Convert.ToDateTime(txtDateTo.Text);
                string OCODE = ((SessionUser)Session["SessionUser"]).OCode;
                //objAtt_BLL.InsertOTperiodic(objOTperiodic);

                var result = objAtt_BLL.UpdateOTperiodic_ByDate01to15(Convert.ToDateTime(txtDateFrom.Text), Convert.ToDateTime(txtDateTo.Text), OCODE);
                if (result == 1)
                {
                    ScriptManager.RegisterStartupScript(this.Page, Page.GetType(), "text", "func('Data Processed Successfully')", true);
                    //lblMessage.Text = "Data Update successfully!";
                    //lblMessage.ForeColor = System.Drawing.Color.Green;
                    txtDateFrom.Text = "";
                    txtDateTo.Text   = "";
                }
                else
                {
                    ScriptManager.RegisterStartupScript(this.Page, Page.GetType(), "text", "func('Data Processeing Error!')", true);
                }
            }
            catch (Exception ex)
            {
                ScriptManager.RegisterStartupScript(this.Page, Page.GetType(), "text", "func('" + ex.Message + "')", true);
            }
        }