public DefaultTabHeaderPanel(ITabControl tabControl,
IVisualBootstrapper visualBootstrapper) :
base(visualBootstrapper)
{
_indicatorRect = new RenderRectangle();
_itemsControl = tabControl;
_tabsUsed = Size.Empty;
_indicatord = Size.Empty;
_indicator = new HorizontalRule(visualBootstrapper)
{
HorizontalAlignment = HorizontalAlignments.Left,
Background = visualBootstrapper.ColorPalette.Secondary
};
MarginProperty.AddTransition(_indicator, new ThicknessTransition(_indicator,
MarginProperty, TimeSpan.FromSeconds(0.3), TimeSpan.Zero, TransitionFunctionType.Ease));
WidthProperty.AddTransition(_indicator, new QuantifiedDoubleTransition(_indicator,
WidthProperty, TimeSpan.FromSeconds(0.3), TimeSpan.Zero, TransitionFunctionType.Ease));
_separator = new HorizontalRule(visualBootstrapper);
Background = visualBootstrapper.ColorPalette.Background;
var stackPanel = new UniformStackPanel(visualBootstrapper)
{
Orientation = Orientations.Horizontal
};
var sourcePropertyAccessor = visualBootstrapper.GetPropertyAccessor(
tabControl.GetType(), nameof(tabControl.TabItems));
var spBinding = new OneWayCollectionBinding(tabControl, nameof(tabControl.TabItems),
stackPanel, nameof(Children), null, sourcePropertyAccessor);
stackPanel.AddBinding(spBinding);
_scrollPanel = new ScrollPanel(visualBootstrapper)
{
Content = stackPanel,
ScrollMode = ScrollMode.Horizontal,
IsScrollWithMouseDrag = true,
VerticalAlignment = VerticalAlignments.Top
};
VerticalAlignment = VerticalAlignments.Top;
AddChildren(_scrollPanel, _indicator, _separator);
tabControl.PropertyChanged += OnTabPropertyChanged;
}
static void Main()
{
// create the source collection
ObservableCollection<OrgPerson> personCollection = new ObservableCollection<OrgPerson>();
// populate the source collection
personCollection.Add(new OrgPerson("Tom", Position.CEO));
personCollection.Add(new OrgPerson("John", Position.Manager));
// create the target collection
List<PrintItem> printCollection = new List<PrintItem>();
// create the binding object
OneWayCollectionBinding<OrgPerson, PrintItem> collectionBinding = new OneWayCollectionBinding<OrgPerson, PrintItem>
{
SourceCollection = personCollection,
TargetCollection = printCollection,
SourceToTargetItemDelegate = (person) =>
new PrintItem { StringToPrint = person.Name + " " + person.ThePosition.ToString() }
};
// do the binding
collectionBinding.Bind();
// prints all the items in the target collection
printCollection.PrintItems("Make sure the binding makes the target collection to be in synch with the source collection");
// add an OrgPerson item to the source collection and make sure
// the corresponding PrintItem is added to the target collection
personCollection.Add(new OrgPerson("Nick", Position.Developer));
printCollection.PrintItems("After adding 'Nick Developer' item to the source collection, make sure it also appears in the target collection");
// remove Tom/CEO item from the source collection and make sure that
// the target collection is updated correspondingly
OrgPerson ceo = personCollection.Where((person) => person.ThePosition == Position.CEO).FirstOrDefault();
personCollection.Remove(ceo);
printCollection.PrintItems("After removing the CEO item from the input collection make sure it also disappeared from the target collection");
}