private static void OnSelectedItemsChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var multiSelector = d as MultiSelector;
if (multiSelector == null)
{
return;
}
var binder = (SelectedItemsBinder)multiSelector.GetValue(SelectedItemsBinderProperty);
var selectedItems = e.NewValue as IList;
if (selectedItems != null)
{
if (binder == null)
{
binder = new SelectedItemsBinder(multiSelector);
}
binder.SelectedItems = selectedItems;
}
else if (binder != null)
{
binder.Dispose();
}
}
public MainWindow()
{
InitializeComponent();
_viewModel = (MainVM)DataContext;
var binder = new SelectedItemsBinder(wordsListBox, _viewModel.SelectedWords, _viewModel.FilterSentencesByWords);
binder.Bind();
}
private static void SelectedItemsChanged(DependencyObject target, DependencyPropertyChangedEventArgs args)
{
if (target is ListBox listBox)
{
if (_elementToBinder.TryGetValue(listBox, out var oldBinder))
{
oldBinder.Unbind();
}
var newBinder = new SelectedItemsBinder(listBox, args.NewValue as IList);
newBinder.Bind();
_elementToBinder[listBox] = newBinder;
}
}
private static void SetSelectedValueBinder(DependencyObject obj, SelectedItemsBinder items)
{
obj.SetValue(SelectedValueBinderProperty, items);
}
