using System.Windows.Forms.Design;

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();
}
}

FolderDialog openFolder = new FolderDialog();
if (openFolder.DisplayDialog()==DialogResult.OK)
	textBox1.Text=openFolder.Path.ToString();
else
	textBox1.Text="你没有选择目录";