Customized ListViewItem align problems and others

        BindingList<notificacao_model> items = new BindingList<notificacao_model>();

        public RadForm1()
        {
            InitializeComponent();
            new RadControlSpyForm().Show();
            this.radListView1.VisualItemCreating += radListView1_VisualItemCreating;
            
            for (int i = 0; i < 10; i++)
            {
                items.Add(new notificacao_model(i % 2 == 0,i % 2 == 0, string.Concat(Enumerable.Repeat("Title" + i, 2)),"Description" + i, i % 2 == 0,i % 2 == 0));
            }
            this.radListView1.DataSource = items;

            this.radListView1.AllowArbitraryItemHeight = true;
            this.radListView1.Items.CollectionChanged += Items_CollectionChanged;
        }

        private void Items_CollectionChanged(object sender, Telerik.WinControls.Data.NotifyCollectionChangedEventArgs e)
        {
            Recalculate();
        }
 
        private void Recalculate()
        {
            int totalHeight = 0;
            foreach (ListViewDataItem item in this.radListView1.Items)
            {
                totalHeight += item.ActualSize.Height;
            }
            Size screenSize = new Size(Screen.AllScreens[Screen.AllScreens.Length - 1].Bounds.Width * Screen.AllScreens.Length, 
                Screen.PrimaryScreen.Bounds.Height);
            this.radListView1.Size = new Size(this.radListView1.Width,Math.Min(totalHeight+20, screenSize.Height-50) );
        }