public void GridBind()
 {
     try
     {
         DAL = new DataAccessLayer();
         DataTable dtbl = DAL.GetAllUsers();
         grdViewUsers.DataSource = dtbl;
         grdViewUsers.DataBind();
     }
     catch (Exception ex)
     {
         lblUserErrorMessage.Visible   = true;
         lblUserErrorMessage.Text      = "Exception Occur in Binding: " + ex.Message;
         lblUserErrorMessage.ForeColor = System.Drawing.Color.Red;
     }
 }