File path fetch function and file name fetch function summary in C

1. Get the absolute file path

System.IO.Path.GetFullPath(string path)
string fileName = "myfile.ext";

string path1 = @"mydir";

string path2 = @"\mydir";

string fullPath;
fullPath = Path.GetFullPath(path1);

fullPath = Path.GetFullPath(fileName);

fullPath = Path.GetFullPath(path2);

2. Gets the file name (gets the file name in the specified path, excluding the extension)

System.IO.Path.GetFileNameWithoutExtension(string path)

string fileName = @"C:\mydir\myfile.ext";

string path = @"C:\mydir\";

string result;

result = Path.GetFileNameWithoutExtension(fileName);

result = Path.GetFileName(path);

3. Get an string containing path directory information or an empty reference

System.IO.Path.GetDirectoryName(string path)
string fileName = @"C:\mydir\myfile.ext";

string path = @"C:\mydir\";

string rootPath = @"C:\";

string directoryName;

    

directoryName = Path.GetDirectoryName(fileName);

directoryName = Path.GetDirectoryName(path);

directoryName = Path.GetDirectoryName(rootPath);

4. Merge two path strings.

System.IO.Path.Combine(String path1, String path2)