asp.net中response.write语句不能执行

Question

protected void save_Click(object sender, EventArgs e) { //建立与数据库 Response.Write("<script language='javascript'> alert('该教工号已存在，请重新输入！')</script>"); SqlConnection UserCn = new SqlConnection("server=PC-20081217JBNY;database=JWXX;UID=sa;pwd=888888"); UserCn.Open(); SqlCommand SQLCMD = new SqlCommand("select flag from 教工信息表", UserCn); //SQLCMD.ExecuteReader(); SqlDataReader sqlR; sqlR = SQLCMD.ExecuteReader(); //读取sql语句 //Int32 ss = Int32.Parse(TB_jgh.Text.Trim()); while (sqlR.Read()) { //// Int32 s = (Int32)sqlR.GetSqlInt32(0); //显示表中第一列的字段值 //if (ss.Equals(s)) //{ // a = 1; // Response.Write("<script language='javascript'> alert('该教工号已存在，请重新输入！')</script>"); // break; //} a = Convert.ToInt32(sqlR["flag"].ToString()); // Response.Write("<br>" + s.ToString()); Label2.Text = Convert.ToString(a); } sqlR.Close(); SQLCMD.Clone(); UserCn.Close();}

Answer 1

是不是页面上有updatePanel之类的？alert（）后加上分号试一下，有些浏览器会脚本报错的

Answer 2

Response.Write("<br>" + s.ToString()); 问题可能出在这里