protected override void Add(int insertionIndex, int count)
{
var manager = GetCollectionViewManager();
for (int i = 0; i < count; i++)
{
int index = insertionIndex + i;
var tab = CreateTab(index);
if (manager == null)
{
_actionBar.AddTab(tab, index, false);
}
else
{
manager.Insert(_actionBar, index, tab);
}
}
}