C# AspMenu help needed

[ringo747]

Been struggling to get my head around this one. I have a hierarchy of Term objects that I want to iterate through and add to an asp menu control. I think my recursive function is fine except that each time I need to add the child items to the corresponding parent item, then add the full structure to a navigation control.

See code:

private void IterateSubTerms(Term t)
        {
            if (t.Terms != null)
            {
                foreach (Term term in t.Terms)
                {
                    MenuItem childItem = new MenuItem();
                    childItem.Text = term.Name.ToString();
                    childItem.NavigateUrl = "default.aspx";
                    
                    // next line is the problem
                    myMenu.Items.Add(childItem)
                    IterateSubTerms(term);
                }
            }
        }

The line myMenu.Items.Add is the problem as this will result in only a 2-level navigation structure. Instead what I need is to be able to add child nodes to the corresponding parent node so that I have maybe 4 or 5 levels deep.

What am I missing here? I could maybe use something like myMenu.Items[0].ChildItems.Add but I have no idea where to get the index value from that would drive this.

Any help would be great.

 

[bridder]

I'd split off getting the root items and put a recursive function on adding the children, please excuse any mistakes I've put in this thrown together example but I'm just on my way out the door, pub

    public class MenuDataItem
    {
        public int Id { get; set; }
        public string Title { get; set; }
        public string Description { get; set; }
    }

    public class Class1
    {
        private readonly List<MenuDataItem> _rootCollection = new List<MenuDataItem>();

        private void InitiatingMethodOrEvent()
        {
            var menu = new Menu();
            var root = new MenuItem();

            foreach (var rootItem in _rootCollection)
            {
                var rootMenuItem = BuildMenuItem(rootItem);
                AddChildNodes(rootMenuItem, rootItem);
                root.ChildItems.Add(rootMenuItem);
            }

            menu.Items.Add(root);
        }

        private void AddChildNodes(MenuItem menuItem, MenuDataItem dataItem)
        {
            //add child nodes recursive

            foreach (var child in GetChildItems(dataItem.Id))
            {
                var node = BuildMenuItem(child);
                menuItem.ChildItems.Add(node);
                AddChildNodes(node, child);
            }
        }

        private IEnumerable<MenuDataItem> GetChildItems(int parentId)
        {
            //get child items by parentId
        }

        private static MenuItem BuildMenuItem(MenuDataItem rootItem)
        {
            //set properties of menu item object below

            var returnItem = new MenuItem();
            returnItem.NavigateUrl = rootItem.Id.ToString();
            returnItem.Text = rootItem.Title;
            returnItem.ToolTip = rootItem.Description;

            return returnItem;
        }
    }

Hope this helps and isn't complete jibberish lol...

J.