C# .NET MVC /Web浏览器如何选择本地文件夹路径。

          /// <summary>
        /// 选择一个文件路径
        /// </summary>
        /// <returns></returns>
        [HttpPost]
        public ActionResult SelectPath()
        {
            try
            {
                //选择文件夹开始
                FolderBrowserDialog dialog = new FolderBrowserDialog();
                dialog.Description = "请选择文件路径";
                var Path = "";
                Thread t = new Thread((ThreadStart)(() =>
                {

                    if (dialog.ShowDialog() == DialogResult.OK)
                    {
                        string foldPath = dialog.SelectedPath;
                        Path = foldPath;
                        // MessageBox.Show("已选择文件夹:" + foldPath, "选择文件夹提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    }
                }
                    ));
                t.SetApartmentState(ApartmentState.STA);
                t.Start();
                t.Join();
                //选择文件夹结束
               

                return Json(new
                {
                    Success = true,
                    Message = "选择成功！"
                });
            }
            catch (Exception)
            {

                return Json(new
                {
                    Success = false,
                    Message = "系统错误！"
                });
            }

        }