/// <summary>
/// Removes the item from the view. If the item is one of the customizable items, then it is
/// collapsed, if it is an item added to the QAT from the UI, it is removed from the Items collection.
/// </summary>
public void Remove(object item)
{
if (!Items.Contains(item))
{
var dp = item as DependencyObject;
if (dp != null)
{
item = ItemContainerGenerator.ItemFromContainer(dp);
if (item == null || !Items.Contains(item))
{
return;
}
}
else
{
return;
}
}
var customizable = CustomizableItems.Where(c => c.Item == item).FirstOrDefault();
if (customizable != null)
{
customizable.Visibility = Visibility.Collapsed;
}
else
{
Items.Remove(item);
}
}
/// <summary>
/// Overriding to ensure proper state.
/// </summary>
protected override void ClearContainerForItemOverride(DependencyObject element, object item)
{
base.ClearContainerForItemOverride(element, item);
var customizable = CustomizableItems.Where(c => c.Item == item).FirstOrDefault();
if (customizable != null)
{
customizable.PropertyChanged -= HandleCustomizableItemVisibilityChanged;
CustomizableItems.Remove(customizable);
}
}