protected void btnShow_Click(object sender, EventArgs e) { DataSet ds = objAdmin.ShowAllCylinders(); if (ds.Tables[0].Rows.Count > 0) { fs1.Visible = true; ViewState["ds"] = ds; gvCylinders.DataSource = ds.Tables[0]; gvCylinders.DataBind(); } else { gvCylinders.EmptyDataText = "No Data Available"; gvCylinders.DataBind(); } }