How to show TextBox and Combobox alternatively in GridComboBoxColumn in WinForms DataGrid (SfDatGrid)?

WinForms DataGrid (SfDataGrid) doesn't have direct support to display TextBox and Combobox alternatively in GridComboBoxColumn. However, it is possible to achieve this by overriding the OnInitializeEditElement method in GridComboBoxCellRenderer. 

 Form1 : Form
{
        public Form1()
        {
            InitializeComponent();
         //Remove existing ComboBox Renderer
            this.sfDataGrid1.CellRenderers.Remove("ComboBox");
            //Add customized ComboBox Renderer
            this.sfDataGrid1.CellRenderers.Add("ComboBox", new GridComboBoxCellRendererExt(sfDataGrid1));
        }
}
 
public class GridComboBoxCellRendererExt : GridComboBoxCellRenderer
{
        private SfDataGrid dataGrid;
 
        public GridComboBoxCellRendererExt(SfDataGrid dataGrid) : base()
        {
            this.dataGrid = dataGrid;
        }
 
        protected override void OnInitializeEditElement(DataColumnBase column, RowColumnIndex rowColumnIndex, SfComboBox uiElement)
        {
            base.OnInitializeEditElement(column, rowColumnIndex, uiElement);
 
            if (column.GridColumn.MappingName == "ShipCityID")
            {
                //ShipCity Column display the TextBox cell and ComboBox alternative rows in SfDataGrid
 
                //Display the text box to edit the cell value instead of the combo box condition based. 
                if (rowColumnIndex.RowIndex % 2 == 0)
                {
                    //To display the edit element as text box. 
                    uiElement.DropDownStyle = DropDownStyle.DropDown;
                    uiElement.DropDownButton.Visible = false;
                }
            }
 
        }
}

this.sfDataGrid1.CurrentCellValidating += sfDataGrid1_CurrentCellValidating;
void sfDataGrid1_CurrentCellValidating(object sender, CurrentCellValidatingEventArgs e)
{
            if (this.sfDataGrid1.CurrentCell.Column is GridComboBoxColumn && this.sfDataGrid1.CurrentCell.CellRenderer.CurrentCellRendererElement != null)
            {
                var shipCityName = this.sfDataGrid1.CurrentCell.CellRenderer.CurrentCellRendererElement.Text;
                var shipCityDetails = orderInfo.ShipCityDetails.FirstOrDefault(city => city.ShipCityName == shipCityName);
 
                if (shipCityDetails == null && !string.IsNullOrEmpty(this.sfDataGrid1.CurrentCell.CellRenderer.CurrentCellRendererElement.Text))
                {
                    shipCityID++;
                    orderInfo.ShipCityDetails.Add(new ShipCityDetails() { ShipCityName = this.sfDataGrid1.CurrentCell.CellRenderer.CurrentCellRendererElement.Text, ShipCityID = shipCityID });
                }
            }
}