R – MOSS – get site usage summary by code

I would seriously consider going with propfind (webdav). I can't give you an exact answer on how to check for file or document library or list, but I can post a function that can serve as a base for something you might implement... here it is....

/// <summary>
        /// Checks if MOSS resource exists.
        /// </summary>
        /// <param name="url">
        /// The url to the resource.
        /// </param>
        /// <returns>
        /// True or false.
        /// </returns>
        /// <exception cref="Exception">
        /// </exception>
        private bool MossResourceExists(string url)
        {
            // Create the web request object
            var oReq = (HttpWebRequest) WebRequest.Create(url);

            // Set the needed properties
            oReq.Method = "PROPFIND";
            oReq.Credentials = wsLists.Credentials; // Use same credentials as wsLists. 
            oReq.AllowAutoRedirect = true;
            oReq.UserAgent = "Microsoft-WebDAV-MiniRedir/6.1.7600";

            try
            {
                // Enumerate through top level only, increasing the depth will find children.
                oReq.Headers["Depth"] = "0";
                oReq.Headers["translate"] = "f";
                var oRequest = new StreamWriter(oReq.GetRequestStream());
                oRequest.WriteLine();
                oRequest.Close();
                oReq.GetResponse();
                ////done with the webclient stuff, check the results

                //var oMyDoc = new XmlDocument();
                //oMyDoc.LoadXml(sResponse);
                //var oNsMgr = new XmlNamespaceManager(oMyDoc.NameTable);
                //oNsMgr.AddNamespace("D", "DAV:");

                //XmlNodeList oAllResponses = oMyDoc.SelectNodes(".//D:multistatus/D:response", oNsMgr);

                //foreach (XmlNode oNode in oAllResponses)
                //{
                //    if ()
                //    string oNodeURL = oNode.SelectSingleNode("./D:href", oNsMgr).InnerText.ToLower()
                //    Console.WriteLine("Name: " + 
                //                      oNode.SelectSingleNode("./D:propstat/D:prop/D:displayname",
                //                      oNsMgr).InnerText);

                //    if (oNode.SelectNodes("./D:propstat/D:prop/D:isFolder", oNsMgr).Count > 0)
                //    {
                //        Console.WriteLine("Is folder: " +
                //                oNode.SelectSingleNode("./D:propstat/D:prop/D:isFolder",
                //                oNsMgr).InnerText);
                //    }
                //    else
                //    {
                //        Console.WriteLine("Is folder: f");
                //    }
                //    Console.WriteLine();
                //}
            }
            catch (WebException ex)
            {
                var errorResponse = ex.Response as HttpWebResponse;

                if (errorResponse != null)
                    if (errorResponse.StatusCode == HttpStatusCode.NotFound)
                    {
                        return false;
                    }
                    else
                    {
                        throw new Exception("Error checking if URL exists:" + url + ";Status Code:" +
                                            errorResponse.StatusCode + ";Error Message:" + ex.Message);
                    }
            }
            return true;
}

Yes you can. When you set up the drop down to fill with data from the data connection you can filter the entries for the information that you want. After you have selected the datasource press the button to the right of Entries to select the repeating group that you want.

There is a filter data button on the Select field or group dialog.

From there you can filter the data how you want.