public void SetElement(VisualElement element)
{
if (element != null && !(element is TabbedPage))
{
throw new ArgumentException("Element must be a TabbedPage", "element");
}
TabbedPage oldElement = Element;
Element = (TabbedPage)element;
if (oldElement != null)
{
oldElement.PropertyChanged -= OnElementPropertyChanged;
((INotifyCollectionChanged)oldElement.Children).CollectionChanged -= OnPagesChanged;
Control?.GetDescendantsByName <TextBlock>(TabBarHeaderTextBlockName).ForEach(t => { t.AccessKeyInvoked -= AccessKeyInvokedForTab; });
}
if (element != null)
{
if (Control == null)
{
Control = new FormsPivot {
Style = (Windows.UI.Xaml.Style)Windows.UI.Xaml.Application.Current.Resources["TabbedPageStyle"],
};
Control.SelectionChanged += OnSelectionChanged;
Tracker = new BackgroundTracker <Pivot>(Windows.UI.Xaml.Controls.Control.BackgroundProperty)
{
Element = (Page)element,
Control = Control,
Container = Control
};
Control.Loaded += OnLoaded;
Control.Unloaded += OnUnloaded;
}
Control.DataContext = Element;
OnPagesChanged(Element.Children,
new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
UpdateCurrentPage();
UpdateToolbarPlacement();
UpdateToolbarDynamicOverflowEnabled();
((INotifyCollectionChanged)Element.Children).CollectionChanged += OnPagesChanged;
element.PropertyChanged += OnElementPropertyChanged;
if (!string.IsNullOrEmpty(element.AutomationId))
{
Control.SetValue(Windows.UI.Xaml.Automation.AutomationProperties.AutomationIdProperty, element.AutomationId);
}
}
OnElementChanged(new VisualElementChangedEventArgs(oldElement, element));
}
public void SetElement(VisualElement element)
{
if (element != null && !(element is TabbedPage))
{
throw new ArgumentException("Element must be a TabbedPage", "element");
}
TabbedPage oldElement = Element;
Element = (TabbedPage)element;
if (oldElement != null)
{
oldElement.PropertyChanged -= OnElementPropertyChanged;
((INotifyCollectionChanged)oldElement.Children).CollectionChanged -= OnPagesChanged;
}
if (element != null)
{
if (Control == null)
{
Control = new FormsPivot {
Style = (Windows.UI.Xaml.Style)Windows.UI.Xaml.Application.Current.Resources["TabbedPageStyle"],
};
Control.SelectionChanged += OnSelectionChanged;
Tracker = new BackgroundTracker <Pivot>(Windows.UI.Xaml.Controls.Control.BackgroundProperty)
{
Element = (Page)element, Control = Control, Container = Control
};
Control.Loaded += OnLoaded;
Control.Unloaded += OnUnloaded;
}
Control.DataContext = Element;
OnPagesChanged(Element.Children, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
UpdateCurrentPage();
UpdateBarTextColor();
UpdateBarBackgroundColor();
((INotifyCollectionChanged)Element.Children).CollectionChanged += OnPagesChanged;
element.PropertyChanged += OnElementPropertyChanged;
if (!string.IsNullOrEmpty(element.AutomationId))
{
Control.SetValue(AutomationProperties.AutomationIdProperty, element.AutomationId);
}
}
OnElementChanged(new VisualElementChangedEventArgs(oldElement, element));
}
