/// <summary>
/// Add data item as last child of parent
/// </summary>
/// <param name="parent">parent data item</param>
/// <param name="item">data item to add</param>
public void AddChild(object parent, object item)
{
if (parent == null)
{
Add(item);
}
else
{
VirtualizingTreeViewItem parentContainer = (VirtualizingTreeViewItem)GetItemContainer(parent);
if (parentContainer == null)
{
return;
}
int index = -1;
if (parentContainer.IsExpanded)
{
if (parentContainer.HasChildren)
{
TreeViewItemContainerData lastDescendant = parentContainer.LastDescendant();
index = IndexOf(lastDescendant.Item) + 1;
}
else
{
index = IndexOf(parentContainer.Item) + 1;
}
}
else
{
parentContainer.CanExpand = true;
}
if (index > -1)
{
TreeViewItemContainerData addedItemData = (TreeViewItemContainerData)Insert(index, item);
VirtualizingTreeViewItem addedTreeViewItem = (VirtualizingTreeViewItem)GetItemContainer(item);
if (addedTreeViewItem != null)
{
addedTreeViewItem.Parent = parentContainer.TreeViewItemData;
}
else
{
addedItemData.Parent = parentContainer.TreeViewItemData;
}
}
}
}
public void AddChild(object parent, object item)
{
if (parent == null)
{
this.Add(item);
}
else
{
VirtualizingTreeViewItem itemContainer1 = (VirtualizingTreeViewItem)this.GetItemContainer(parent);
int index = -1;
TreeViewItemContainerData itemContainerData1;
if (Object.op_Equality((Object)itemContainer1, (Object)null))
{
itemContainerData1 = (TreeViewItemContainerData)this.GetItemContainerData(parent);
if (itemContainerData1 == null)
{
Debug.LogWarning((object)"Lost parent data");
return;
}
if (itemContainerData1.IsExpanded)
{
index = !itemContainerData1.HasChildren(this) ? this.IndexOf(itemContainerData1.Item) + 1 : this.IndexOf(itemContainerData1.LastDescendant(this).Item) + 1;
}
else
{
itemContainerData1.CanExpand = true;
}
}
else
{
if (itemContainer1.IsExpanded)
{
index = !itemContainer1.HasChildren ? this.IndexOf(itemContainer1.Item) + 1 : this.IndexOf(itemContainer1.LastDescendant().Item) + 1;
}
else
{
itemContainer1.CanExpand = true;
}
itemContainerData1 = itemContainer1.TreeViewItemData;
}
if (index <= -1)
{
return;
}
TreeViewItemContainerData itemContainerData2 = (TreeViewItemContainerData)this.Insert(index, item);
VirtualizingTreeViewItem itemContainer2 = (VirtualizingTreeViewItem)this.GetItemContainer(item);
if (Object.op_Inequality((Object)itemContainer2, (Object)null))
{
itemContainer2.Parent = itemContainerData1;
}
else
{
itemContainerData2.Parent = itemContainerData1;
}
}
}
