用FolderBrowserDialog选择一个文件路径

private void BrowseBtn_Click(object sender, RoutedEventArgs e)
 {
            System.Windows.Forms.FolderBrowserDialog folderBrowserDialog = new System.Windows.Forms.FolderBrowserDialog();
            System.Windows.Forms.DialogResult result= folderBrowserDialog.ShowDialog();
            if (result == System.Windows.Forms.DialogResult.OK)

            {
                this.BrowserPathTextBox.Text = folderBrowserDialog.SelectedPath;
            }                         

 }