protected override DependencyObject GetContainerForItemOverride()
{
var item = new NumberBoxItem();
item.OnItemSingleClickHandler += Item_OnClickHandler;
return(item);
}
private void Item_OnClickHandler(object sender, ItemMouseSingleClickEventArgs <object> e)
{
NumberBoxItem item = sender as NumberBoxItem;
this.SelectedItem = item.Content;
}