string path1 = @"C:\folder1"; string path2 = @"folder2\file.txt"; string fullPath = Path.Combine(path1, path2);
string filePath = @"C:\folder1\file.txt"; string extension = Path.GetExtension(filePath); // returns ".txt"
string filePath = @"C:\folder1\file.txt"; string fileNameWithoutExtension = Path.GetFileNameWithoutExtension(filePath); // returns "file"
string filePath = @"C:\folder1\file.txt"; string directoryName = Path.GetDirectoryName(filePath); // returns "C:\folder1"The Path class is part of the .NET Framework Class Library.