C#

protected override void OnDrawSubItem(DrawListViewSubItemEventArgs e)
        {
            if (e.Item.GetType() == typeof(MyListViewItem))
            {
                MyListViewItem item = (MyListViewItem)e.Item;

                if (item.Bars.ContainsKey(e.ColumnIndex))
                {
                    e.DrawDefault = false;
                    //Find where the bar should be drawn by adding up the widths of the columns below this one

                    if (e.ColumnIndex > 0)
                    {
                        int runningTotal = 0;
                        for (int i = e.ColumnIndex - 1; i >= 0; i--)
                        {
                            System.Diagnostics.Debug.WriteLine(e.ColumnIndex);
                            runningTotal += this.Columns[i].Width;
                        }

                        //Add on the left client bound
                        runningTotal += e.Item.Bounds.Left;
                        item.Bars[e.ColumnIndex].Location = new System.Drawing.Point(runningTotal, e.Bounds.Location.Y);
                        item.Bars[e.ColumnIndex].Width = this.Columns[e.ColumnIndex].Width;
                        item.Bars[e.ColumnIndex].Height = e.Bounds.Size.Height;
                    }
                    else
                    {
                        int clientBound = e.Item.Bounds.Left;

                        item.Bars[e.ColumnIndex].Location = new System.Drawing.Point(clientBound, e.Bounds.Location.Y);
                        item.Bars[e.ColumnIndex].Width = this.Columns[e.ColumnIndex].Width;
                        item.Bars[e.ColumnIndex].Height = e.Bounds.Size.Height;
                    }
                }
                else
                    e.DrawDefault = true;
            }
            else
                e.DrawDefault = true;
            
            base.OnDrawSubItem(e);
        }