HTML encoding test (C#) : Html Encode « Development « ASP.NET Tutorial

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.";
    }
}

9.23.Html Encode
	9.23.1.	Common HTML Special Characters
	9.23.2.	HTML encoding test (C#)