怎样把这个xml中的以下的内容转换为dataset?
bzscs 2006-01-06 10:47:21 <?xml version="1.0" encoding="UTF-8" ?>
<InfoResponse xmlns="hh123">
<Request>
<IsValid>True</IsValid>
</Request>
<UserNameList>
<User>
<UserId>1</UserId>
<Username>a</Username>
<Truename>b</Truename>
</User>
<User>
<UserId>2</UserId>
<Username>c</Username>
<Truename>d</Truename>
</User>
<UserNameList >
<InfoResponse>