public void NavigateBackstack(GhTreeItem ti)
{
for (var i = Breadcrumbs.Count() - 1; i >= 0; i--)
{
var item = Breadcrumbs[i];
if (item != ti) // TODO: Revisit this logic once we store page state
{
Breadcrumbs.Remove(item);
continue;
}
break;
}
SelectPath(ti, insertInBackStack:false);
}
private void SelectPath(GhTreeItem pathTreeItem, bool insertInBackStack=true)
{
PathItems = null;
var pathTree = this.PathTree;
string path = pathTreeItem.Path;
if (null != pathTree && null != path)
{
if (pathTree.ContainsKey(path))
{
var unsortedItems = pathTree[path];
PathItems = unsortedItems
.OrderBy(ti => ti.ItemTypeWeightForSorting)
.ThenBy(ti => ti.Name)
.ToList();
if (insertInBackStack) Breadcrumbs.Add(pathTreeItem);
}
}
}