private void AssociatedObject_PreviewMouseDoubleClick(object sender, MouseButtonEventArgs e)
{
var item = VisualTreeHelperT.FindVisualParentOrSelf <ListBoxItem>(e.OriginalSource);
if (item != null && (this.Command != null))
{
object commandParameter = this.CommandParameter;
if (commandParameter == null)
{
commandParameter = item.DataContext;
}
if (this.Command.CanExecute(commandParameter))
{
this.Command.Execute(commandParameter);
}
}
}
private void AssociatedObject_PreviewGotKeyboardFocus(object sender, KeyboardFocusChangedEventArgs e)
{
if (e.OriginalSource is ListBoxItem)
{
return;
}
var item = VisualTreeHelperT.FindVisualParentOrSelf<ListBoxItem>(e.OriginalSource);
if (item != null)
{
if (this.AssociatedObject.SelectionMode == SelectionMode.Single)
{
item.IsSelected = true;
}
else
{
this.AssociatedObject.SelectedItems.Clear();
item.IsSelected = true;
}
}
}
