C# = HtmlEncode from Class Library

Question

Hello,

I have a class library (in C#). I need to encode my data using the HtmlEncode method. This is easy to do from a web application. My question is, how do I use this method from a class library that is being called from a console application?

Thank you!

Answer 1

Import System.Web Or call the System.Web.HttpUtility which contains it

You will need to add the reference to the DLL if it isn't there already

        string TestString = "This is a <Test String>.";
        string EncodedString = System.Web.HttpUtility.HtmlEncode(TestString);

Answer 2

Just reference the System.Web assembly and then call: HttpServerUtility.HtmlEncode

http://msdn.microsoft.com/en-us/library/system.web.httpserverutility.htmlencode.aspx

Answer 3

Add a reference to System.Web.dll and then you can use the System.Web.HtmlUtility class

Answer 4

If you are using C#3 a good tip is to create an extension method to make this even simpler. Just create a static method (preferably in a static class) like so:

public static class Extensions
{
 public static string HtmlEncode(this string s)
 {
  return HttpUtility.HtmlEncode(s);
 }
}

You can then do neat stuff like this:

string encoded = "<div>I need encoding</div>".HtmlEncode();

Answer 5

http://msdn.microsoft.com/en-us/library/system.net.webutility.aspx available in .NET 4 (No need to reference System.Web.dll)