清除Html标记的一个封装函数

后台.cs文件代码

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Text.RegularExpressions;

/// <summary>

///AboutClearHtml 的摘要说明

/// </summary>

public class AboutClearHtml

{

public AboutClearHtml()

{

//

//TODO: 在此处添加构造函数逻辑

//

}

#region 清除HTML函数

/// <summary>

/// 清除HTML标记函数

/// </summary>

/// <param name="Htmlstring">带Html标记的字符串</param>

/// <returns>不带Html的字符串</returns>

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 = Regex.Replace(Htmlstring, @"&(pound|#163);", "\xa3", RegexOptions.IgnoreCase);

Htmlstring = Regex.Replace(Htmlstring, @"&(copy|#169);", "\xa9", RegexOptions.IgnoreCase);

Htmlstring = Regex.Replace(Htmlstring, @"&#(\d+);", "", RegexOptions.IgnoreCase);

Htmlstring.Replace("<", "");

Htmlstring.Replace(">", "");

Htmlstring.Replace("\r\n", "");

Htmlstring = HttpContext.Current.Server.HtmlEncode(Htmlstring).Trim();

return Htmlstring;

}

#endregion

}

网页中引用：

<a style="cursor: pointer" href="WebPages/ShowData.aspx?SID=<%#Eval("SID") %>">

<%#AboutClearHtml.NoHTML(Eval("DataContent").ToString()).ToString().Length >80?AboutClearHtml.NoHTML(Eval("DataContent").ToString()).ToString().Substring (0,80)+"......": AboutClearHtml.NoHTML(Eval("DataContent").ToString())%>

</a>