Question

在.net中的combox下拉列表怎么实现省市县三级联动

Answer 1

用XML 方式写
<province name="山东省">
<city name="济南市">
<county name="XX县" />
<county name="XX县" />
<county name="XX县" />
</city>
<city name="青岛市">
<county name="XX县" />
<county name="XX县" />
</city>
</province>
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(strXmlPath);//加载xml
XmlNode xn = xmlDoc.SelectSingleNode(strSingNode);//选择节点
XmlNodeList xnl = xn.ChildNodes;