private void BuildItems(GridTreeViewItem parentItem, GridViewData data)
{
GridTreeViewItem item = new GridTreeViewItem(data);
if (parentItem.children == null)
{
parentItem.children = new List <TreeViewItem>();
}
parentItem.children.Add(item);
if (data.IsExpand)
{
if (ViewModel.HasChild(data))
{
foreach (var child in data.Children)
{
BuildItems(item, child);
}
}
}
else
{
if (ViewModel.HasChild(data))
{
item.children = TreeView.CreateChildListForCollapsedParent();
}
}
}
protected override IList <TreeViewItem> BuildRows(TreeViewItem root)
{
root.children?.Clear();
GridTreeViewItem rootItem = (GridTreeViewItem)root;
GridViewData[] childDatas = ViewModel.GetChilds(rootItem.ItemData);
foreach (var child in childDatas)
{
BuildItems(rootItem, child);
}
return(base.BuildRows(root));
}