Remove Menuitem asp.net คือว่าผมสร้าง Menu ขึ้นมาดังนี้

  protected void Button1_Click(object sender, EventArgs e)
    {
        MenuItem item = (MenuItem)this.NavigationMenu.FindItem("Home/Music");
        if (item != null)
        {
            RemoveMenuItem(this.NavigationMenu.Items, item);
        }
    }
    private bool RemoveMenuItem(MenuItemCollection items, MenuItem itemToRemove)
    {
        if (items.Contains(itemToRemove))
        {
            items.Remove(itemToRemove);
            return true;
        }

        foreach (MenuItem item in items)
        {
            if (RemoveMenuItem(item.ChildItems, itemToRemove)) return true;
        }
        return false; 
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        MenuItem item = (MenuItem)this.NavigationMenu.FindItem("Home/Movies/Action");
        if (item != null)
        {
            RemoveMenuItem(this.NavigationMenu.Items, item);
        }
    }

protected void DDL_SelectedIndexChanged(object sender, EventArgs e)
        {
            var menu = Page.Master.FindControl("Menu1") as Menu;
            if (menu != null)
            {
                var mi = menu.FindItem(DDL.SelectedItem.Text);
                menu.Items.Remove(mi);
            }
        }