js处理的listBox列表后台取值

把你的listBox列表放到隐藏控件中,然后得到

js处理的listBox列表后台是不能直接得到的


方法<%@ Page Language="C#" EnableEventValidation="false" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

  protected void Button1_Click(object sender, EventArgs e)
  {
  Response.Write(HiddenField1.Value);
  Response.Write("<br>");
  Response.Write("你选中的是:" + Request.Form[ListBox1.UniqueID]);
  }
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
  <title></title>
  <script type="text/javascript">
  var i = 1;
  function SendTo() {
  ls = document.getElementById("<%=ListBox1.ClientID %>");
  st = []
  sv = [];
  for (i = 0; i < ls.options.length; i++) {
  st.push(ls.options[i].text);
  sv.push(ls.options[i].value);
  }
  document.getElementById("<%=HiddenField1.ClientID %>").value = st.join(",") + "|" + sv.join(",");
  }

  function Add() {
  ls = document.getElementById("<%=ListBox1.ClientID %>");
  ls.options[ls.options.length] = new Option("A" + i, "B" + i);
  i++;
  }
  </script>
</head>
<body>
  <form id="formd1" runat="server">
  <asp:ListBox ID="ListBox1" runat="server" SelectionMode="Multiple"></asp:ListBox>
  <input type="button" value="添加" onclick="Add()" />
  <asp:Button ID="Button1" runat="server" Text="传递" OnClick="Button1_Click" OnClientClick="SendTo();" />
  <asp:HiddenField ID="HiddenField1" runat="server" />
  </form>
</body>
</html>

posted on 2011-12-02 16:24  xupeng  阅读(415)  评论(0编辑  收藏  举报

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