protected void Page_Load(object sender, EventArgs e)
        {
            try
            {
                msgbox.Visible = false;

                if (!IsPostBack)
                {
                    fromDateTextBox.Text = LumexLibraryManager.GetAppDateView(DateTime.Today.ToString());
                    toDateTextBox.Text   = LumexLibraryManager.GetAppDateView(DateTime.Today.ToString());
                    LumexSessionManager.Add("CenterId", "CNT001");
                    LumexSessionManager.Add("ActiveUserId", "Developer");
                }

                if (deletedListGridView.Rows.Count > 0)
                {
                    deletedListGridView.UseAccessibleHeader    = true;
                    deletedListGridView.HeaderRow.TableSection = TableRowSection.TableHeader;
                }
            }
            catch (Exception ex)
            {
                string message = ex.Message;
                if (ex.InnerException != null)
                {
                    message += " --> " + ex.InnerException.Message;
                }
                MyAlertBox("ErrorAlert(\"" + ex.GetType() + "\", \"" + message + "\", \"\");");
            }
        }