public void Execute(object parameter)
{
var frame = VisualTreeHelper1.GetChildObject <Frame>(Application.Current.RootVisual);
if (frame != null && parameter != null)
{
frame.Navigate(new Uri(parameter.ToString(), UriKind.Relative));
}
}
private void AddableListBox_LayoutUpdated(object sender, EventArgs e)
{
for (int i = 0; i < Items.Count; i++)
{
var item = ItemContainerGenerator.ContainerFromIndex(i) as ListBoxItem;
var addBtn = VisualTreeHelper1.GetChildObject <Button>(item, "AddButton");
var removeBtn = VisualTreeHelper1.GetChildObject <Button>(item, "RemoveButton");
if (i == Items.Count - 1)
{
addBtn.Visibility = Visibility.Visible;
removeBtn.Visibility = Visibility.Collapsed;
}
else
{
addBtn.Visibility = Visibility.Collapsed;
removeBtn.Visibility = Visibility.Visible;
}
}
}
protected override void OnItemsChanged(NotifyCollectionChangedEventArgs e)
{
if (e.Action == NotifyCollectionChangedAction.Add || e.Action == NotifyCollectionChangedAction.Reset)
{
if (Items.Count > 1)
{
SelectedItem = Items[Items.Count - 1];
UpdateLayout();
ScrollIntoView(SelectedItem);
}
}
else if (e.Action == NotifyCollectionChangedAction.Remove)
{
for (int i = 0; i < Items.Count; i++)
{
var item = ItemContainerGenerator.ContainerFromIndex(i) as ListBoxItem;
var numberTB = VisualTreeHelper1.GetChildObject <TextBlock>(item, "NumberTB");
numberTB.Text = (i + 1).ToString();
}
}
}
