// 确保在 library.xml 中创建一个 utilDb/database 元素
public static XmlElement EnsureUtilDatabaseElement(XmlDocument cfg_dom,
string strDbName,
string strType)
{
XmlElement nodeDatabase = cfg_dom.DocumentElement.SelectSingleNode("utilDb/database[@name='" + strDbName + "']") as XmlElement;
if (nodeDatabase != null)
{
nodeDatabase.SetAttribute("type", strType);
return(nodeDatabase);
}
XmlElement container = DomUtil.EnsureContainerElement(cfg_dom, "utilDb");
nodeDatabase = cfg_dom.CreateElement("database");
container.AppendChild(nodeDatabase);
nodeDatabase.SetAttribute("name", strDbName);
nodeDatabase.SetAttribute("type", strType);
return(nodeDatabase);
}