C#/Sharepoint: get lists and list contents from webservice

I had access to part of a sharepoint site at
(in norwegian http://sharepointserver/omrader/myarea, I think it's called area in english installation)
Within the area there was a list I wanted to extract some data from.

Started up .Net and created a new winforms-project.
Add service reference - Advanced - Add web reference
In url I added the string /_vti_bin/Lists.asmx resulting in something like
there are other services available, but Lists was the part I was interested in.
I gave it the name sharepoint_lists
Now I could get a list of all lists in this part of sharepoint:

using (var sharepoint = new sharepoint_lists.Lists())

sharepoint.UseDefaultCredentials = true;
var lister = sharepoint.GetListCollection();
VisXML(lister, txtXML);

private void VisXML(XmlNode node, Control txt)
    txt.Text = node.OuterXml;

This gives me an XML containg all the lists in this part of sharepoint.
By glancing through it I could see my lists ID and Title, I could now use either to get the contents of my list:
using (var sharepoint = new sharepoint_lists.Lists())
sharepoint.UseDefaultCredentials = true;
var query = SorterQuery("Title");
var felter=LagViewFields(new string[]{"ID", "Title", "Beskrivelse"});
//var node = sharepoint.GetListItems("4dab35f1-d2c3-4270-9c7b-555555b55555", "",query ,felter, "", null, null);
var node = sharepoint.GetListItems("My list", "", query, felter, "", null, null);
VisXML(node, txtXML);

SorterQuery and LagViewFields are just some quick helpers I created to help with sorting and returning fields  
private XmlNode SorterQuery(string sortBy)
XmlDocument xmlDoc = new System.Xml.XmlDocument();
XmlNode ndQuery = xmlDoc.CreateNode(XmlNodeType.Element, "Query", ""); ndQuery.InnerXml = "<OrderBy>" + "<FieldRef Name=\"" + sortBy + "\" />" + "</OrderBy>";
return ndQuery;
private XmlNode LagViewFields(string[] felter)
var xmlDoc = new System.Xml.XmlDocument();
var node = xmlDoc.CreateNode(XmlNodeType.Element, "ViewFields", "");
foreach (var s in felter)
node.InnerXml += "<FieldRef Name='" + s + "' />";
return node;

With this I now have access to all the elements in my list,
and further processing is just a matter of parsing xml etc.


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