protected void ddlExpList_SelectedIndexChanged(object sender, EventArgs e) { IsfixedMapped = customerBo.GetFixedMapped(ddlExpList.SelectedValue); if (IsfixedMapped == true) { ddlDisplay.Enabled = true; ddlDisplay_SelectedIndexChanged(sender, e); } else { ddlDisplay.SelectedIndex = 0; ddlDisplay.Enabled = false; ddlDisplay_SelectedIndexChanged(sender, e); } }