What is the best way to move directory with all its contents(files or folders) in C#?
I used the following codes, but it throws The Directory is not empty         
        
here is a example ...you should move all files before move directory
 string fileName = "test.txt";
        string sourcePath = @"C:\Users\Public\TestFolder";
        string targetPath =  @"C:\Users\Public\TestFolder\SubDir";
        // Use Path class to manipulate file and directory paths. 
        string sourceFile = System.IO.Path.Combine(sourcePath, fileName);
        string destFile = System.IO.Path.Combine(targetPath, fileName);
        // To copy a folder's contents to a new location: 
        // Create a new target folder, if necessary. 
        if (!System.IO.Directory.Exists(targetPath))
        {
            System.IO.Directory.CreateDirectory(targetPath);
        }
        // To copy a file to another location and  
        // overwrite the destination file if it already exists.
        System.IO.File.Copy(sourceFile, destFile, true);
        // To copy all the files in one directory to another directory. 
        // Get the files in the source folder. (To recursively iterate through 
        // all subfolders under the current directory, see 
        // "How to: Iterate Through a Directory Tree.")
        // Note: Check for target path was performed previously 
        //       in this code example. 
        if (System.IO.Directory.Exists(sourcePath))
        {
            string[] files = System.IO.Directory.GetFiles(sourcePath);
            // Copy the files and overwrite destination files if they already exist. 
            foreach (string s in files)
            {
                // Use static Path methods to extract only the file name from the path.
                fileName = System.IO.Path.GetFileName(s);
                destFile = System.IO.Path.Combine(targetPath, fileName);
                System.IO.File.Copy(s, destFile, true);
            }
        }
        else
        {
            Console.WriteLine("Source path does not exist!");
        }