using System;
using System.Web;
using System.Text.RegularExpressions;
public static string NoHTML(string Htmlstring)
{
//删除脚本
Htmlstring = Regex.Replace(Htmlstring,@"<script[^>]*?>.*?</script>","",RegexOptions.IgnoreCase);
//删除HTML
Htmlstring = Regex.Replace(Htmlstring,@"<(.[^>]*)>","",RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring,@"([\r\n])[\s]+","",RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring,@"-->","",RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring,@"<!--.*","",RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring,@"&(quot|#34);","\"",RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring,@"&(amp|#38);","&",RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring,@"&(lt|#60);","<",RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring,@"&(gt|#62);",">",RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring,@"&(nbsp|#160);"," ",RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring,@"&(iexcl|#161);","\xa1",RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring,@"&(cent|#162);","\xa2",RegexOptions.IgnoreCase);
Htmlstring = &nbs
asp.net实现省市联动并且保存状态，实现原理：初次使用C#传统的DataBind进行数据绑定，选择省，市后进行ajax方式加载下级列表，并将选定值保存到Hidden中，点击提交后根据Hidden的值进行省，市绑定，再将Hidden的值赋给DropDownList的SelectedValue，从而实现状态的保存。
HTML代码
<asp:HiddenField ID="HiddenField ......
----------------------ModalPopupExtender
D:\sourceforge\asp.net\AjaxControlToolkit_net20\SampleWebSite\ModalPopup\ModalPopup.aspx
// linkbutton1增加扩展ModalPopupExtender属性:
<asp:LinkButton ID="LinkButton1" runat="server" Text="Click here to change the paragraph styl ......
