如何使用.net代码重命名文件名?

如何重命名文件夹中存在的文件?

how to rename a file present in a folder ?

System.IO.Move不起作用.下面的代码不起作用

System.IO.Move doesnt work. This below code does not work

using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace YourRenaminApplication
{
[Serializable] 
 public class RenameProgram
    {
        public void RenameFile(string OldFilename, string NewFilename)
        {
            System.IO.File.Move("OldFilename", "newFilename");
        }
    }
}

有任何可行的建议或解决方案吗?

Any workable suggestions or solutions please ?

MBH