//选择文件
OpenFileDialog ofd = new OpenFileDialog();
ofd.ShowDialog();
MessageBox.Show(ofd.FileName);
//选择文件夹
FolderBrowserDialog fbd = new FolderBrowserDialog();
fbd.ShowDialog();
MessageBox.Show(fbd.SelectedPath);
来源 http://zhidao.baidu.com/link?url=doZoBvgucVL0nEgrlkxbrYkcX7zNpOV2TH6CJIuOPREgz-tSgNRgTxXXVcSlCw6MrGN76o0iVfNI8fYWSNxoWK