Creating UITable with section using Mono touch and slodge mvvmcross

Question

I am trying to create a UItable with sections using mono touch and slodge mvvmcross. However I am having some issues.

In my data I have a range of sections with 1-2

Answer 1

I don't really understand the problem you are seeing at present.

However, I can explain how I used sections in BaseSessionListView.cs the conference sample.

Basically, in that sample the ItemsSource was a grouped source - so the ViewModel code was:

public class SessionGroup : List<Session>
{
    public string Key { get; set; }

    public SessionGroup(string key, IEnumerable<Session> items)
        : base(sessions)
    {
        Key = key;
    }
}

private List<SessionGroup> _groupedList;
public List<SessionGroup> GroupedList
{
    get { return _groupedList; }
    protected set { _groupedList = value; RaisePropertyChanged("GroupedList"); }
}

This meant that my exposed ItemsSource had a structure a bit like:

Group
    Session
    Session
    Session
Group
    Session
    Session
    Session
    Session
Group
    Session
    Session
etc

The Section based methods in the table source were then:

public override string[] SectionIndexTitles(UITableView tableView)
{
  if (_sessionGroups == null)
       return base.SectionIndexTitles(tableView);

   return _sessionGroups.Select(x => KeyToString(x.Key, 10)).ToArray();
}

protected override object GetItemAt(NSIndexPath indexPath)
{
   if (_sessionGroups == null)
       return null;

   return _sessionGroups[indexPath.Section][indexPath.Row];
}

public override int NumberOfSections(UITableView tableView)
{
    if (_sessionGroups == null)
        return 0;

    return _sessionGroups.Count;
}

public override int RowsInSection(UITableView tableview, int section)
{
    if (_sessionGroups == null)
        return 0;

    return _sessionGroups[section].Count;
}

This seemed to work.... but I don't know if it helps with your question?

---

If I'd wanted to add a header element, then I guess I would have just changed the RowsInSection and GetItemAt methods to accomodate this - plus the GetOrCreateCellFor to return header element cells too... but I guess there will be other ways to do this too?