public class FolderDialog : FolderNameEditor
{
FolderNameEditor.FolderBrowser fDialog = new System.Windows.Forms.Design.FolderNameEditor.FolderBrowser();
public FolderDialog()
{
}
public DialogResult DisplayDialog()
{
return DisplayDialog("请选择一个文件夹");
}

public DialogResult DisplayDialog(string description)
{
fDialog.Description = description;
return fDialog.ShowDialog();
}
public string Path
{
get
{
return fDialog.DirectoryPath;
}
}

~FolderDialog()
{
fDialog.Dispose();
}
}

使用：
FolderDialog openFolder = new FolderDialog();
openFolder.DisplayDialog();

唉，真是千辛万苦才找到阿！连Shell API都用上了！最后终于让我看到了它！哈哈,爽