这是一段从XML文件中提取内容填充到configObject类成员变量的代码，大概有近100个else if比较分支
请问如何优化一下，减少代码量

using (XmlReader xr = XmlReader.Create(configXMLReader, settings))
{
    Log.Debug("OpHostCIDConfigure.xml contents ");
    while (xr.Read())
    {
        if (xr.MoveToContent() != XmlNodeType.Element)
            continue;

        if (String.Equals(xr.Name, "agency"))
        {
            configObject.Agency = long.Parse(xr.ReadString());
            Log.Debug("Agency Content {0} ", configObject.Agency);
        }
###
  <中间省略大量else if比较分支>
###  
  
        else if (String.Equals(xr.Name, "csc-parameters"))
        {
            tmpLong = long.Parse(xr.ReadString());
            lCscParamList.Add(tmpLong);
            Log.Debug("CscParameters {0}", tmpLong);
        }
        else if (String.Equals(xr.Name, "cid-parameters"))
        {
            tmpLong = long.Parse(xr.ReadString());
            lCidParamList.Add(tmpLong);
            Log.Debug("CidParameters {0}", tmpLong);
        }
    }
}
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FROM 14.203.253.*