AjaxControlToolkit.ComboBox.RenderContents C# (CSharp) Method

        protected override void RenderContents(HtmlTextWriter writer)
        {
            ComboTable.RenderControl(writer);

            OptionListControl.Items.Clear();
            var copy = new ListItem[Items.Count];
            Items.CopyTo(copy, 0);
            OptionListControl.Items.AddRange(copy);
            OptionListControl.RenderControl(writer);

            HiddenFieldControl.RenderControl(writer);
        }