C# windows form checklistbox highligh checked items

<pre> private void softListBox_DrawItem(object sender, DrawItemEventArgs e)
        {
            e.DrawBackground();
            if ((e.Index >= 0) && (e.Index < softListBox.Items.Count))
            {
                bool isChecked = softListBox.GetItemChecked(e.Index);
                e.Graphics.FillRectangle(isChecked ? Brushes.LightGreen : Brushes.White, e.Bounds);
                e.Graphics.DrawString(softListBox.Items[e.Index].ToString(), e.Font, Brushes.Black, e.Bounds);
            }
            e.DrawFocusRectangle();
        }

this.softListBox.DrawMode = System.Windows.Forms.DrawMode.OwnerDrawFixed;