未将对象引用设置到对象的实例

Question

test.xml文件:
<?xml version="1.0" encoding="GB2312"?>
<SiteData>
<SiteItem>
<Cuid>aaaaaaaa</Cuid>
<LabelCn>bbbbbbbb</LabelCn>
<RelatedSpaceCuid>cc</RelatedSpaceCuid>
<ContactAddress>dd</ContactAddress>
<RelatedProjectCuid>null</RelatedProjectCuid>
<MaintMode>2</MaintMode>
<State>5</State>
</SiteItem>
</SiteData>代码：
            XmlDocument xmldoc = new XmlDocument();
            xmldoc.Load("test.xml");
            XmlNode node = xmldoc.SelectSingleNode("SiteData/SiteItem");
            if (node != null)
            {
                MessageBox.Show(node.Attributes["Cuid"].Value);
            }执行到MessageBox.Show(node.Attributes["Cuid"].Value);就报未将对象引用设置到对象的实例
大虾们帮我 ，thanks

Answer 1

老大，你的Cuid不是属性是元素啊

Answer 2

MessageBox.Show(node.FristChild.Value);