Directory.Move doesn't work (file already exist)

Question

I\'ve got main folder:

c:\\test

And there I have 2 folders: Movies and Photos.

Photos has three folders with files with the same s

Answer 1

The most common 2 reasons why Directory.Move could fail are, if:

• It's a different volume (you need to Copy/Delete)
• It already exists (doesn't support overwrite by default)

Here is my simple solution for the second problem (overwrite):

public bool MoveDirectory(string sourceDirName, string destDirName, bool overwrite)
{
    if (overwrite && Directory.Exists(destDirName))
    {
        var needRestore = false;
        var tmpDir = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName());
        try
        {
            Directory.Move(destDirName, tmpDir);
            needRestore = true; // only if fails
            Directory.Move(sourceDirName, destDirName);
            return true;
        }
        catch (Exception)
        {
            if (needRestore)
            {
                Directory.Move(tmpDir, destDirName);
            }
        }
        finally
        {
            Directory.Delete(tmpDir, true);
        }
    }
    else
    {
        Directory.Move(sourceDirName, destDirName); // Can throw an Exception
        return true;
    }
    return false;
}