How to change Combobox column dropdown list width in WinForms DataGrid (SfDataGrid)?

this.sfDataGrid1.CellRenderers.Remove("ComboBox");
this.sfDataGrid1.CellRenderers.Add("ComboBox", new GridComboBoxCellRendererExt());public class GridComboBoxCellRendererExt : GridComboBoxCellRenderer
{
        protected override void OnInitializeEditElement(DataColumnBase column, RowColumnIndex rowColumnIndex, SfComboBox uiElement)
        {
            base.OnInitializeEditElement(column, rowColumnIndex, uiElement);
            IEnumerable comboboxSource = (IEnumerable)uiElement.DataSource;
            var comboboxlist = comboboxSource.Cast<object>().ToList();
 
            int maxWidth = 0;
            int temp = 0;
            foreach (var item in comboboxlist)
            {
                temp = TextRenderer.MeasureText(item.ToString(), uiElement.Font).Width;
                if (temp > maxWidth)
                {
                    maxWidth = temp;
                }
            }
            //set the combo box drop down width based on content contains in combo Box list
            uiElement.DropDownListView.ItemWidth = maxWidth;
        }
}