Arrow keys don't work after programmatically setting ListView.SelectedItem

Question

I have a WPF ListView control, ItemsSource is set to an ICollectionView created this way:

var collectionView = 
  System.Windows.Data.CollectionViewSource.Ge         


        

Answer 1

Cheeso's solution DOES work for me. Prevent the null exception by just setting a timer.tick to do this, so you have left your original routine.

var uiel = (UIElement)this.lv1.ItemContainerGenerator                        
           .ContainerFromItem(lv1.Items[ix]); 
if (uiel != null) uiel.Focus();

Problem solved when calling timer after a RemoveAt/Insert, and also at Window.Loaded to set focus and select to first item.

Wanted to give back this first post for the much inspiration and solutions I got at SE. Happy coding!