protected void Button1_Click(object sender, EventArgs e) { LanMenu lan = new LanMenu(); lan.lanName = TextBox1.Text; lan.lanId = Convert.ToInt32(Request.QueryString["id"].ToString()); string sql = "select count(*) from lanMenu where lanName='" + lan.lanName + "'"; if (Class1.excuint(sql) == 0 || lan.lanName == s) { if (LanMenu.editLan(lan)) { Response.Write("<script>alert('修改成功')</script>"); } else { Response.Write("<script>alert('修改失败')</script>"); } } else { Response.Write("<script>alert('栏目名已存在')</script>"); } }