方法一:

项目中引用 Shell32.dll;(文件可以从C:\windows\system32\ 目录下拷贝)

using Shell32;

        public static string GetFileDetailInfo(string strFilePath, int iIndex)
        {
            try
            {
                ShellClass sh = new ShellClass();
                Shell32.Folder folder = sh.NameSpace(strFilePath.Substring(0, strFilePath.LastIndexOf("\\")));
                Shell32.FolderItem folderItem = folder.ParseName(strFilePath.Substring(strFilePath.LastIndexOf("\\") + 1));
                return folder.GetDetailsOf(folderItem, iIndex);
            }
            catch (Exception ex)
            {
                ex.Message.ToString();
                return null;
            }
        }