private void LoadResponseGrid(string sortExpr) { ProjectManagementDa projDA = new ProjectManagementDa(); DataTable dt = projDA.GetLOIResponse(ProjectLetterOfIntentId); dt.DefaultView.Sort = sortExpr; if (dt.DefaultView.Table.Rows.Count == 0) { EmptyMessageLabel.Visible = true; } else { EmptyMessageLabel.Visible = false; ResponseGrid.DataSource = dt.DefaultView; ResponseGrid.DataBind(); } }