Question

I’de like to make a listbox which loads data by a custom number of rows. More like the listbox the marketplace has. Any ideas?

edit: I meant the way how that listbox works. It loads the marketplace data by x rows at a time. I’d like it to load datarows by a number of x so the app don’t have to load all the data at once.

Answer 1

You can use the ExtendedListBox control from this library: http://mytoolkit.codeplex.com

public MyPage()
{
    list.ScrolledToEnd += OnScrolledToEnd;
}

public void OnScrolledToEnd(object sender, ScrolledToEndEventArgs args)
{
    list.TriggerScrolledToEndEvents = false; 
    // TODO load more data async. => call OnDataLoaded on loaded
}

public void OnDataLoaded()
{
    // TODO add new items to list
    list.TriggerScrolledToEndEvents = true; 
}

If you encounter problems using this class please inform me here.

More information: http://mytoolkit.codeplex.com/wikipage?title=ExtendedListBox