public void Insert(int index, DataTreeListViewItem item)
{
if (index < 0 && index > base.Count)
{
throw new ArgumentOutOfRangeException("index");
}
if (item == null)
{
throw new ArgumentNullException("item");
}
if (!this.Contains(item))
{
base.List.Insert(index, item);
item.Parent = this.owner;
if (item.Parent != null)
{
this.owner.IsLeaf = false;
item.IndentCount = this.owner.IndentCount + 1;
if (item.Parent.IsExpanded && item.Parent.IsInListView)
{
item.AddToListView(this.ListView);
return;
}
}
else
{
item.IndentCount = 1;
item.AddToListView(this.ListView);
}
}
}
private void Expand()
{
if (!this.IsLeaf && this.IsExpanded && this.ListView != null)
{
this.ListView.InternalOnExpandItem(this);
int index = base.Index;
foreach (object obj in this.ChildrenItems)
{
DataTreeListViewItem dataTreeListViewItem = (DataTreeListViewItem)obj;
dataTreeListViewItem.AddToListView(this.listView);
}
foreach (object obj2 in this.ChildrenItems)
{
DataTreeListViewItem dataTreeListViewItem2 = (DataTreeListViewItem)obj2;
if (dataTreeListViewItem2.IsExpanded)
{
dataTreeListViewItem2.Expand();
}
}
}
}
