} // IsSelected
// ----------------------------------------------------------------------
protected override void RemoveItem(int index)
{
CheckableItem <T> item = this[index];
if (item != null)
{
item.IsSelectedChanged -= IsItemSelectedChanged;
}
base.RemoveItem(index);
} // IsSelected
} // OnIsSelectedChanged
// ----------------------------------------------------------------------
private static void IsSelectedPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
CheckableItem <T> checkableItem = d as CheckableItem <T>;
if (checkableItem == null)
{
return;
}
checkableItem.OnIsSelectedChanged();
} // IsSelectedPropertyChanged
} // IsSelected
// ----------------------------------------------------------------------
protected override void InsertItem(int index, CheckableItem <T> item)
{
base.InsertItem(index, item);
item.IsSelectedChanged += IsItemSelectedChanged;
} // IsSelected
