public UrlFiledown() { InitializeComponent(); cmb_filetype.DataSource = typeof(OptionFileType).GetEnumNames(); if (!string.IsNullOrWhiteSpace(CommonSettings.SaveFilePath)) { lbsaveresult.Text = CommonSettings.SaveFilePath; } else { FolderBrowserDialog dialog = new FolderBrowserDialog(); dialog.Description = "请选择下载保存路径"; if (dialog.ShowDialog() == DialogResult.OK) { lbsaveresult.Text = dialog.SelectedPath; } } UrlDownFile.FileSavePath = lbsaveresult.Text; displaylist = new List <Options>(); list = SerializeHelp <Options> .GetClassModelList(CommonSettings.SaveOptionPath); list.ForEach(m => displaylist.Add(m)); dgvoptions.AutoGenerateColumns = false; BindOptions();