用户名：<input name="username" type="text">

string username = Request["username"].ToString();

string username = Request.Form.Get("username").ToString();

3.用Request["name"];

前台代码如上一样。

后台获取代码如下：

code

string usrname=Request["name"];

注：在前台获取html的值：

方法：document.all.("你的控件的id").value;

例如：下面实现了在页面中搜索的功能

<input id="t1" type="text" />

<input id="Button1" οnclick="findInPage(document.all.t1.value)"
            type="button" value="button" />

<script language="javascript">
            var NS4 = (document.layers);var IE4 = (document.all);var win = window;var n = 0;
            function findInPage(str){
             var txt, i, found;
             if (str == '') return false;
             if (NS4){
              if (!win.find(str))
               while(win.find(str, false, true))
               n++;
              else
               n++;
              if (n == 0)
              alert('Not found.');}
             if (IE4){
              txt = win.document.body.createTextRange();
              for (i = 0; i <= n && (found = txt.findText(str)) != false; i++){
               txt.moveStart('character', 1);
               txt.moveEnd('textedit');}
              if (found){
               txt.moveStart('character', -1);
               txt.findText(str);
               txt.select();
               txt.scrollIntoView();
               n++;}else{if (n > 0){
                n = 0;
                findInPage(str);}else alert('没有符合查询条件的数据！');}}return false;}
        </script>

这样就可以实现在页面中来搜索内容了。呵呵