用遍历Request.Form的方法获取页面中web控件的值，如下
this.Label2.Text = Request.Form.Count.ToString();
string xs = " ";
for (int i = 0; i < Request.Form.Count; i++)
{
this.Label2.Text=this.Label2.Text+ "|| "+Request.Form[i].Trim();
xs = this.Label2.Text;
}
共有8个控件，但实际遍历却是13个值，且要么为空，要么是很长的乱码，如下（用‘||’隔开）:
13||||||||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||1||2||2008||5||Y||3||jsjyy2007||添加设定||/wEWHgL18qGWBQLqgv/4BgLjgtv4BgKlm5WbAQKlm4H2CQKlm62fDwKlm5n6BwKPh+bQCgKOh+bQCgKNh+bQCgKMh+bQCgKLh+bQCgKKh+bQCgKJh+bQCgKYh+bQCgKXh
1||2||2008||5||Y||3||jsjyy2007||添加设定 是正常的值
------解决方案--------------------------------------------------------
控件只有8个,但还有好几个隐藏域不是乱码,那个是viewsate中的值
------解决方案--------------------------------------------------------
你看看客户端的html查找input 或select元素的个数就知道了.