What is the correct way to check if a path is an UNC path or a local path?

Question

The easiest way to check if a path is an UNC path is of course to check if the first character in the full path is a letter or backslash. Is this a good solution or could th

Answer 1

This is my version:

public static bool IsUnc(string path)
{
    string root = Path.GetPathRoot(path);

    // Check if root starts with "\\", clearly an UNC
    if (root.StartsWith(@"\\"))
    return true;

    // Check if the drive is a network drive
    DriveInfo drive = new DriveInfo(root);
    if (drive.DriveType == DriveType.Network)
    return true;

    return false;
}

The advantage of this version over @JaredPars version is that this supports any path, not just DriveInfo.