BrightIdeasSoftware.VirtualObjectListView.HandleRetrieveVirtualItem C# (CSharp) Метод

        protected virtual void HandleRetrieveVirtualItem(object sender, RetrieveVirtualItemEventArgs e)
        {
            // .NET 2.0 seems to generate a lot of these events. Before drawing *each* sub-item,
            // this event is triggered 4-8 times for the same index. So we save lots of CPU time
            // by caching the last result.
            //System.Diagnostics.Debug.WriteLine(String.Format("HandleRetrieveVirtualItem({0})", e.ItemIndex));

            if (this.lastRetrieveVirtualItemIndex != e.ItemIndex) {
                this.lastRetrieveVirtualItemIndex = e.ItemIndex;
                this.lastRetrieveVirtualItem = this.MakeListViewItem(e.ItemIndex);
            }
            e.Item = this.lastRetrieveVirtualItem;
        }