private static void OnRemoveCommandExecute(object obj)
{
var parameters = obj as object[];
var tabItem = parameters[0] as TabItem;
var tabControl = parameters[1] as TabControl;
var dataObject = tabControl.ItemContainerGenerator.ItemFromContainer(tabItem);
var result = TabControlHelper.RaiseItemRemoving(tabControl, dataObject);
if (!result)
{
return;
}
else
{
bool hasRemovedFromSource = false;
if (dataObject is TabItem)
{
try
{
tabControl.Items.Remove(tabItem);
hasRemovedFromSource = true;
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex);
}
}
TabControlHelper.RaiseItemRemoved(tabControl, dataObject, hasRemovedFromSource);
}
}
public void Execute(object parameter)
{
var values = (object[])parameter;
var tabItem = values[0] as TabItem;
var tabControl = values[1] as TabControl;
if (tabItem != null && tabControl != null)
{
var isVertical = tabItem.TabStripPlacement == Dock.Top || tabItem.TabStripPlacement == Dock.Bottom;
tabItem.IsSelected = false;
var anima1 = new DoubleAnimation()
{
From = isVertical ? tabItem.ActualWidth : tabItem.ActualHeight,
To = 0,
Duration = TimeSpan.FromSeconds(0.3),
EasingFunction = new CubicEase()
{
EasingMode = EasingMode.EaseOut
},
};
anima1.Completed += delegate
{
IEditableCollectionView items = tabControl.Items; //Cast to interface
if (items.CanRemove)
{
items.Remove(tabItem);
}
TabControlHelper.RaiseRemoved(tabControl, tabItem, items.CanRemove);
};
var anima2 = new DoubleAnimation()
{
To = 0,
Duration = TimeSpan.FromSeconds(0.3),
};
tabItem.BeginAnimation(isVertical ? TabItem.WidthProperty : TabItem.HeightProperty, anima1);
tabItem.BeginAnimation(TabItem.OpacityProperty, anima2);
}
}
