internal void GetGlobalItems(List <object> items)
{
if (this.IsBottomLevel)
{
items.AddRange(this.ProtectedItems);
return;
}
int count = this.ItemCount;
for (int i = 0; i < count; i++)
{
DataGridCollectionViewGroup subGroup = this.ProtectedItems[i] as DataGridCollectionViewGroup;
if (subGroup == null)
{
throw new InvalidOperationException("Sub-groups cannot be null (Nothing in Visual Basic).");
}
subGroup.GetGlobalItems(items);
}
}
