protected void Button532_Click(object sender, EventArgs e) { if (Label533.Text == "请选择单位") { ScriptManager.RegisterStartupScript(Page, typeof(Page), "alert", "alert('还没选择单位呢,请选择单位后再提交!')", true); } else { int a = bom.Insert_IMUnitChange(new Guid(Label38.Text), new Guid(Label534.Text), decimal.Parse(TextBox24.Text)); if (a == -1) { ScriptManager.RegisterStartupScript(Page, typeof(Page), "alert", "alert('已存在该单位啦.')", true); } else { DropDownList3.Items.Clear(); SqlDataReader myReader = bom.Query_MUnit(new Guid(Label38.Text)); while (myReader.Read()) { DropDownList3.Items.Add(new ListItem(myReader["UnitName"].ToString(), myReader["UnitID"].ToString()));//增加Item } Panel53.Visible = false; UpdatePanel4.Update(); UpdatePanel5.Update(); } } }