datagridview combo box column

[judithSampathwa]

i have a datagridview in that i have two combo box columns, i want to make one of the combo box to be a text box as well as a combox but the other combo box i want to leave it as it is?

how can i do this???

i have the code to make it a text box when the cell is clicked

private void dgvForm_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
        {
            DataGridViewComboBoxEditingControl comboControl = e.Control as DataGridViewComboBoxEditingControl;
            if (comboControl != null)
            {
                 Set the DropDown style to get an editable ComboBox
                if (comboControl.DropDownStyle != ComboBoxStyle.DropDown)
                {
                    comboControl.DropDownStyle = ComboBoxStyle.DropDown;
}}}

how can i make only one combo box to be a datagridview text box and a datagridview combo box

plase some one guide me
thanxxxxxxx