You can sort items in your collection using C1CollectionView just as you would using a CollectionView implementation in any other platform. When you sort a C1CollectionView, the underlying data set is not affected.

For example you can sort by using the SortDescriptions property passing in a SortDescription object:

Dim list = New System.Collections.ObjectModel.ObservableCollection(Of Customer)()
' create a C1CollectionView from the list
Dim _view As New C1.Xaml.C1CollectionView(list)
' sort customers by country
_view.SortDescriptions.Add(New C1.Xaml.SortDescription("Country", C1.Xaml.ListSortDirection.Ascending))

var list = new System.Collections.ObjectModel.ObservableCollection<Customer>();
// create a C1CollectionView from the list
C1.Xaml.C1CollectionView _view = new C1.Xaml.C1CollectionView(list);
// sort customers by country
_view.SortDescriptions.Add(new C1.Xaml.SortDescription("Country", C1.Xaml.ListSortDirection.Ascending));

Where "Country" is the name of the property which you want to sort on. You can sort ascending (A-Z) or descending (Z-A) depending on the ListSortDirection parameter.

Sorting on more than one property or column

You can sort on more than one property by simply adding additional SortDescriptions. If you are sorting by multiple properties you should use the DeferRefresh method to defer the automatic refresh after each sort so that you only apply each sort once.

' sort multiple properties using DeferRefresh so you only refresh once
Using _view.DeferRefresh()
      _view.SortDescriptions.Clear()
      _view.SortDescriptions.Add(New C1.Xaml.SortDescription("Country", C1.Xaml.ListSortDirection.Ascending))
      _view.SortDescriptions.Add(New C1.Xaml.SortDescription("Name", C1.Xaml.ListSortDirection.Ascending))
End Using

// sort multiple properties using DeferRefresh so you only refresh once
using (_view.DeferRefresh())
{
    _view.SortDescriptions.Clear();
    _view.SortDescriptions.Add(new C1.Xaml.SortDescription("Country", C1.Xaml.ListSortDirection.Ascending));
    _view.SortDescriptions.Add(new C1.Xaml.SortDescription("Name", C1.Xaml.ListSortDirection.Ascending));
}

For more advanced sorting that can improve performance see the C1CollectionView.CustomSort property.