Using a third-party library (Newtonsoft.Json) as alternative:
public static string XmlEscape(string unescaped)
{
if (unescaped == null) return null;
return JsonConvert.SerializeObject(unescaped); ;
}
public static string XmlUnescape(string escaped)
{
if (escaped == null) return null;
return JsonConvert.DeserializeObject(escaped, typeof(string)).ToString();
}
Examples of escaped string:
a<b ==> "a<b"
<foo></foo> ==> "foo></foo>"
NOTE: In newer versions, the code written above may not work with escaping, so you need to specify how the strings will be escaped:
public static string XmlEscape(string unescaped)
{
if (unescaped == null) return null;
return JsonConvert.SerializeObject(unescaped, new JsonSerializerSettings()
{
StringEscapeHandling = StringEscapeHandling.EscapeHtml
});
}
Examples of escaped string:
a<b ==> "a\u003cb"
<foo></foo> ==> "\u003cfoo\u003e\u003c/foo\u003e"