string filePath = @"D:DataT01.jpg"; Path.GetFullPath(filePath);
//=> D:DataT01.jpg
Path.GetDirectoryName(filePath));
//=> D:Data
Path.GetFileName(filePath);
//=> T01.jpg
Path.GetFileNameWithoutExtension(filePath);
//=> T01
Path.GetExtension(filePath);
//=> .jpg
Path.GetPathRoot(filePath);
//=> D:
filePath.Substring(folderPath.LastIndexOf(@"") + 1);
//=> Data