UInt32.TryParse() hex-number not working

Question

For some reason the following C# Console program always outputs:

32
False
wtf=0

What am I doing wrong?

using System.Collections.Generic; using System.Linq; using System.Text; using System.Globalization;  namespace ConsoleApplication1 {     class Program     {         static void Main(string[] args)         {             Console.WriteLine(Convert.ToUInt32("0x20", 16));             UInt32 wtf = 0;             Console.WriteLine(UInt32.TryParse("0x20",                               NumberStyles.HexNumber, // I've tried also AllowHexSpecifier                               CultureInfo.InvariantCulture,  // I've also tried CurrentCulture                               out wtf));             Console.WriteLine("wtf={0}", wtf);         }     } } 

Answer 1

You need to drop the "0x" prefix. Please see this blog entry

Answer 2

// stupid but effective way to improve the parsing char[] _trim_hex = new char[] {'0','x'}; int temp;  if (int.TryParse(value.TrimStart(_trim_hex), NumberStyles.HexNumber, null, out temp)) {     // temp is good }