private void BrowseLocalPath_Click(object sender, RoutedEventArgs e) { FolderBrowserDialog folderBrowserDialog = new FolderBrowserDialog { ShowNewFolderButton = true }; if (folderBrowserDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK) { ProgramSetting.LocalPath = folderBrowserDialog.SelectedPath; LocalPath.GetBindingExpression(System.Windows.Controls.TextBox.TextProperty).UpdateTarget(); } }