<%@ page language="C#" masterpagefile="~/keyadmin/MasterPage.master" autoeventwireup="true" inherits="keyadmin_editpass, App_Web_-zsoneeh" title="无标题页" %><asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
<title>管理</title>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<p> &nbsp;</p>
<p>用户名:<asp:TextBox ID="usertext" runat="server"></asp:TextBox></p>
  <p>密码: <asp:TextBox ID="passtext" runat="server" TextMode="Password"></asp:TextBox>
      (不修改留空)</p>
                    <p>前缀:<asp:TextBox ID="exttext" runat="server" MaxLength="5"></asp:TextBox>
        (前缀)</p>
    <p>密钥:<asp:TextBox ID="deskeytext" runat="server" MaxLength="8"></asp:TextBox>
        (加密)</p> 
    <p>
        <asp:Button ID="button1" runat="server" onclick="button1_Click" Text="修改" />
    </p>
</asp:Content>这是代码,我我在web.config里设了<customErrors mode="Off"/>,也不能显示错误信息,这是怎么搞的