c# get script directory

var DDIR = System.IO.Directory.GetCurrentDirectory();
var WorkingDirectory = "";
int index = DDIR.IndexOf(@"\");
if (index > 0)
	WorkingDirectory = DDIR.Substring(0, index) + @"\";

System.IO.Path.GetDirectoryName(Assembly.GetEntryAssembly().Location);

string appPath = System.IO.Path.GetDirectoryName(Application.ExecutablePath);