/// <inheritdoc />
protected override void SetItem(int index, TItemVM item)
{
TItemVM oldItem = this[index];
base.SetItem(index, item);
CallBehaviors(CollectionChangedArgs <TItemVM> .ItemSet(this, oldItem, item, index));
}
public void SetItem_CallsHandleChangeWithItemSetArgs()
{
Collection.Add(CreateItem());
var oldItem = CreateItem();
var newItem = CreateItem();
Collection.Add(oldItem);
ResetStub();
Collection[1] = newItem;
AssertChangeArgs(
CollectionChangedArgs <IViewModel> .ItemSet(Collection, oldItem, newItem, 1)
);
}
protected void HandleItemSet(TItemVM previousItem, TItemVM item, int index = 0)
{
var args = CollectionChangedArgs <TItemVM> .ItemSet(Collection, previousItem, item, index);
Behavior.HandleChange(Context, args);
}