copyDirectory method that also works for network shares.

gistfile1.cs

/// <summary>
/// Copies one directory to another directory. This works for network share whereas Directory.Move does not...
/// </summary>
/// <param name="sourceDir">source directory</param>
/// <param name="destinationDir">destination directory</param>
/// <param name="deleteSourceDirectory">set to true to delete the source directory</param>
private static void copyDirectory(string sourceDir, string destinationDir, bool deleteSourceDirectory = false)
{
    String[] entries;
    
    if (!System.IO.Directory.Exists(sourceDir)) return;

    if (!System.IO.Directory.Exists(destinationDir)) System.IO.Directory.CreateDirectory(destinationDir);

    // copy sub files
    entries = System.IO.Directory.GetFiles(sourceDir);
    foreach (string file in entries)
    {
        System.IO.File.Copy(file, System.IO.Path.Combine(destinationDir, System.IO.Path.GetFileName(file)), true);
    }

    // copy sub directories
    entries = System.IO.Directory.GetDirectories(sourceDir);
    foreach (string subDir in entries)
    {
        copyDirectory(subDir, System.IO.Path.Combine(destinationDir, System.IO.Path.GetFileName(subDir)), deleteSourceDirectory);
    }

    if (deleteSourceDirectory) System.IO.Directory.Delete(sourceDir, true);
}