public static MenuItemHierarchyItem CreateFromModel(NavigationManagementViewModel model) {
var usedItems = new List<MenuItemEntry>();
var result = new MenuItemHierarchyItem(null);
//create root elements
foreach (var item in model.MenuItemEntries)
{
if (!item.Position.Contains(SEPARATOR)) {
result.Children.Add(new MenuItemHierarchyItem(item));
usedItems.Add(item);
}
}
foreach (var item in result.Children) {
var childUsedItems = CreateChildrenFromModel(item, model);
usedItems.AddRange(childUsedItems);
}
foreach (var item in model.MenuItemEntries.Except(usedItems).ToList()) {
result.Children.Add(new MenuItemHierarchyItem(item));
usedItems.Add(item);
}
//set order
SetOrder(result.Children, 0);
return result;
}
private static List<MenuItemEntry> CreateChildrenFromModel(MenuItemHierarchyItem hitem, NavigationManagementViewModel model)
{
var usedItems = new List<MenuItemEntry>();
var startStr = hitem.Item.Position + SEPARATOR;
foreach (var item in model.MenuItemEntries)
{
if (item.Position.StartsWith(startStr) && item.Position.LastIndexOf(SEPARATOR) == startStr.Length - 1) {
hitem.Children.Add(new MenuItemHierarchyItem(item));
usedItems.Add(item);
}
}
foreach (var item in hitem.Children) usedItems.AddRange(CreateChildrenFromModel(item, model));
return usedItems;
}