C# 读取Xml 并赋值给 List - .NET技术 / C#

我有获取到一个xml格式的字符串 strXml：
XML code:
string strXml="
<ListConferenceResponse xmlns="http://mediax.huawei.com/webservice/types">
<description xmlns="">Success</description>
<page xmlns="">
<index>1</index>
<data>
<entry>
<key>StartTime</key>
<value>1274137920000</value>
</entry>
<entry>
<key>Subject</key>
<value>voice test</value>
</entry>
</data>
<data>
<entry>
<key>StartTime</key>
<value>45678912</value>
</entry>
<entry>
<key>Subject</key>
<value>testSub</value>
</entry>
</data>
</page>
</ListConferenceResponse>
";


我有一个类 ConferenceInfo:
C# code:
public class ConferenceInfo
{
private string _StartTime;
public string StartTime
{
get { return _StartTime; }
set { _StartTime = value; }
}

private string _Subject;
public string Subject
{
get { return _Subject; }
set { _Subject = value; }
}
}

我现在有个方法：
public static List<ConferenceInfo> GetXml