C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;
					
public class Program
{
	public static void Main()
	{
		static string Encode(Guid guid)
        {
            var encoded = Convert.ToBase64String(guid.ToByteArray());
            encoded = encoded
                .Replace("/", "_")
                .Replace("+", "-");
            return encoded.Substring(0, 22);
        }
		
		static Guid Decode(string value)
        {
            value = value
                .Replace("_", "/")
                .Replace("-", "+");
            var buffer = Convert.FromBase64String(value + "==");
            return new Guid(buffer);
        }
		
	var guid = new Guid("ec89a0d8-1a54-48f9-8aa0-b1e3016aa9e6"); // GUID to convert to vtid
		Console.WriteLine(Encode(guid)); // vtid
		Console.WriteLine(Decode("2KCJ7FQa-UiKoLHjAWqp5g")); // convert vtid to GUID
	}
}

 
using System;
                    
public class Program
{
    public static void Main()
    {
        static string Encode(Guid guid)
        {
            var encoded = Convert.ToBase64String(guid.ToByteArray());
            encoded = encoded
                .Replace("/", "_")
                .Replace("+", "-");
            return encoded.Substring(0, 22);
        }
        
        static Guid Decode(string value)
        {
            value = value
                .Replace("_", "/")
                .Replace("-", "+");
            var buffer = Convert.FromBase64String(value + "==");
            return new Guid(buffer);
        }
        
    var guid = new Guid("ec89a0d8-1a54-48f9-8aa0-b1e3016aa9e6"); // GUID to convert to vtid
        Console.WriteLine(Encode(guid)); // vtid
        Console.WriteLine(Decode("2KCJ7FQa-UiKoLHjAWqp5g")); // convert vtid to GUID
    }
}

IBM037
IBM437
IBM500
ibm850
ibm852
IBM855
ibm857
IBM00858
IBM860
ibm861
DOS-862
IBM863
IBM865
cp866
ibm869
IBM870
shift_jis
gb2312
ks_c_5601-1987
big5
IBM1026
IBM01047
IBM01140
IBM01141
IBM01142
IBM01143
IBM01144
IBM01145
IBM01146
IBM01147
IBM01148
IBM01149
utf-16
utf-16BE
windows-1250
windows-1251
Windows-1252
windows-1253
windows-1254
windows-1258
macintosh
x-mac-japanese
x-mac-chinesetrad
x-mac-korean
x-mac-arabic
x-mac-hebrew
x-mac-chinesesimp
x-mac-romanian
x-mac-ce
x-mac-icelandic
x-mac-turkish
x-mac-croatian
utf-32
utf-32BE
x-IA5
x-IA5-German
x-IA5-Swedish
x-IA5-Norwegian
x-cp20261
IBM273
IBM277
IBM278
IBM280
IBM284
IBM285
IBM297
koi8-r
IBM871
IBM905
IBM00924
EUC-JP
x-cp20936
x-cp20949
koi8-u
iso-8859-1
iso-8859-2
iso-8859-3
iso-8859-4
iso-8859-5
iso-8859-6
iso-8859-7
iso-8859-8
iso-8859-9
iso-8859-13
iso-8859-15
x-Europa
iso-8859-8-i
iso-2022-jp
csISO2022JP
iso-2022-jp
iso-2022-kr
x-cp50227
euc-jp
EUC-CN
euc-kr
hz-gb-2312
GB18030
utf-7
utf-8

Last Run:	10:03:36 am
Compile:	0.41s
Execute:	0.034s
Memory:	320kb
CPU:	0s

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