==== 如何让密码框"保值"??? ====

如何让密码框"保值"???比如在一个页里有一个密码框,二个按钮,一个是"提交",一个是"移动".然后在密码框里输入内容,但当我点击"移动"时,密码框里的内容就没了... 请问大虾... 我怎样才能保存住密码框的值? ... 急...

保存到Hidden控件中吧，密码框控件不能保存
<%@ Page language="c#" AutoEventWireup="false" debug="true"%>
<html>
  <head>
    <title>WebForm</title>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script runat="server" language="c#">
public String Str = "aaa";
private void Page_Load(object sender, System.EventArgs e)
{

}override protected void OnInit(EventArgs e)
{
this.Load += new System.EventHandler(this.Page_Load);
this.Button1.Click += new System.EventHandler(this.Button1_Click);
base.OnInit(e);
}private void Button1_Click(object sender, System.EventArgs e)
{
Response.Write(DateTime.Now.ToString());
}
</script>
  </head>
  <body>

    <form id="Form1" method="post" runat="server">

<INPUT TYPE="password" name=tbPassword value='<%=Str%>'>
<asp:Button id="Button1" runat="server" Text="提交"/>
<INPUT TYPE="button" value="js 查看密码框值" onclick="alert(Form1.tbPassword.value);">
    </form>
  </body>
</html>
protected void Page_Load(object sender, EventArgs e)
   {
      txtPassword.Attributes.Add(Key,value )
   }