BrightIdeasSoftware.ObjectListView.GetDisplayOrderOfItemIndex C# (CSharp) Method

        public virtual int GetDisplayOrderOfItemIndex(int itemIndex)
        {
            if (!this.ShowGroups)
                return itemIndex;

            // TODO: This could be optimized
            int i = 0;
            foreach (ListViewGroup lvg in this.Groups) {
                foreach (ListViewItem lvi in lvg.Items) {
                    if (lvi.Index == itemIndex)
                        return i;
                    i++;
                }
            }

            return -1;
        }