html encode and decode

protected void Page_Load(object sender, EventArgs e)
    {
	// This could mess up HTML.
	string text = "you & me > them"; // 1

	// Replace > with >
	string htmlEncoded = Server.HtmlEncode(text); // 2

	// Now has the > again.
	string original = Server.HtmlDecode(htmlEncoded); // 3

	// This is how you can access the Server in any class.
	string alsoEncoded = HttpContext.Current.Server.HtmlEncode(text); // 4

	StringWriter stringWriter = new StringWriter();
	using (HtmlTextWriter writer = new HtmlTextWriter(stringWriter))
	{
	    // Write a DIV with encoded text.
	    writer.RenderBeginTag(HtmlTextWriterTag.Div);
	    writer.WriteEncodedText(text);
	    writer.RenderEndTag();
	}
	string html = stringWriter.ToString(); // 5
    }

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