/// <summary>
/// Initializes the view.
/// </summary>
public override void Initialize()
{
base.Initialize();
_presentedTabs = new List <Tab>();
if (TabItemTemplate != null)
{
TabItemTemplate.Deactivate();
}
_presentedTabs.AddRange(TabSwitcher.GetChildren <Tab>(x => !x.IsTemplate && !x.IsDestroyed, false));
if (TabItemTemplate == null)
{
// initialize (static) tabs
if (_presentedTabs.Count > 0 && !StaticTabsGenerated)
{
StaticTabsGenerated = true;
TabHeaderList.Content.DestroyChildren();
// go through static objects and initialize tab headers
foreach (var tab in _presentedTabs)
{
CreateTabHeader(tab);
}
// select first tab by default
SelectTab(0, false);
}
}
}
internal void InitTabs()
{
Items.Clear();
if (ItemsDataSource != null)
{
foreach (var item in ItemsDataSource)
{
var newitem = new TabItem();
if (TabItemTemplate != null)
{
newitem.Content = TabItemTemplate.LoadContent();
}
if (TabHeaderItemTemplate != null)
{
newitem.Header = TabHeaderItemTemplate.LoadContent();
}
newitem.DataContext = item;
Items.Add(newitem);
}
}
}
void ItemsDataSource_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
{
if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Add)
{
if (e.NewStartingIndex > -1)
{
foreach (var item in e.NewItems)
{
var newitem = new TabItem();
if (TabItemTemplate != null)
{
newitem.Content = TabItemTemplate.LoadContent();
}
if (TabHeaderItemTemplate != null)
{
newitem.Header = TabHeaderItemTemplate.LoadContent();
}
newitem.DataContext = item;
Items.Add(newitem);
this.SelectedItem = newitem;
}
}
}
else if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Remove)
{
if (e.OldStartingIndex > -1)
{
Items.RemoveAt(e.OldStartingIndex);
}
}
else if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace)
{
Items.RemoveAt(e.OldStartingIndex);
var newitem = new TabItem();
if (TabItemTemplate != null)
{
newitem.Content = TabItemTemplate.LoadContent();
}
if (TabHeaderItemTemplate != null)
{
newitem.Header = TabHeaderItemTemplate.LoadContent();
}
newitem.DataContext = e.NewItems[0];
Items.Add(newitem);
Items.Insert(e.NewStartingIndex, newitem);
}
else if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Reset)
{
InitTabs();
}
}
