a href 怎么根据输入动态改变参数_ASP.NET

a href 如何根据输入动态改变参数
a href后面的参数如何根据输入动态改变
<a href="tencent://Message/?Uin=447524120&&websiteName=q-zone.qq.com&Menu=yes" title="fdfsa">发送消息</a>

Uin的值如何根据文本框输入动态改变,
不好意思，对ASP.NET不熟悉

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可以用服务器端控件HyperLink
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用js控制,给a 一个id ,然后通过document.getElementById(id)找到这个元素,修改它的href属性,再写就是字符串处理了,想必知道弄了
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cs:
public string GetHref()
{
string href="<a href='tencent://Message/?Uin=" + this.txt1.text + "&websiteName=q-zone.qq.com&Menu=yes' title='fdfsa'>发送消息 </a>";
return href;
}
aspx:
<%=GetHref()%>
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HTML code

<html><head><script type="text/javascript"><!--function UpHref(h){   var str="tencent://Message/?Uin="+h+"&&websiteName=q-zone.qq.com&Menu=yes";   var d=document.getElementById("aid");   d.href=str;}--></script></head><body><a href="tencent://Message/?Uin=447524120&&websiteName=q-zone.qq.com&Menu=yes" id="aid" title="fdfsa">发送消息 </a><input type="text" onblur="UpHref(this.value)" /></body></html>
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探讨
cs: 
public string GetHref() 
{ 
  string href=" <a href='tencent://Message/?Uin=" + this.txt1.text + "&websiteName=q-zone.qq.com&Menu=yes' title='fdfsa'>发送消息 </a>"; 
  return href; 
} 
aspx: 
<%=GetHref()%>

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<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<script type="text/javascript" >
function keyupit(sender)
{
  var a = document.getElementById('test1');
  if(a != null)
  {
   var url = "test.aspx?uin=";
   url += sender.value;
   url += "&websiteName=q-zone.qq.com&Menu=yes";
   a.href = url;
  }
}

</script>

   <title>无标题页</title>
</head>
<body>
   <form id="form1" runat="server">
   <div>
   <a id="test1" href="test.aspx?uin=1&websiteName=q-zone.qq.com&Menu=yes">ffff</a>
       <br />
       <input id="txt" type="text" value="" onkeyup="keyupit(this)" /></div>
   </form>
</body>
</html>

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不用客气