string GetEffectiveUrl(object clientObj) { // client can either have define URI in attribute or have set it // via proxy's ServiceURI property - but must exist by now if (!string.IsNullOrEmpty(Url)) { return(Url); } string useUrl = XmlRpcTypeInfo.GetUrlFromAttribute(clientObj.GetType()); if (!string.IsNullOrEmpty(useUrl)) { return(useUrl); } throw new XmlRpcMissingUrl("Proxy XmlRpcUrl attribute or Url " + "property not set."); }