Use Server.HtmlEncode to encode HTML tags (C#) : Server class « Development « ASP.NET Tutorial
- ASP.NET Tutorial
- Development
- Server class
File: Default.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="HtmlEncodeTest" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form ID="form1" runat="server">
<div>
<h1>Properly encoded:</h1>
<div ID="ctrl2" runat="server"/>
<br /><hr /><br />
<h1>Incorrectly encoded:</h1>
<div ID="ctrl1" runat="server"/>
</div>
</form>
</body>
</html>
File: Default.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class HtmlEncodeTest : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
ctrl1.InnerHtml = "To <b>bold</b> text use the <b> tag.";
ctrl2.InnerHtml = "To <b>bold</b> text use the " + Server.HtmlEncode("<b>") + " tag.";
}
}