How to add ComboBoxColumn to the data table and not to the Datagridview?

I have a data table that is serializable. I wanted to add a comboboxcolumn to the datagridview and used DataGridViewComboBoxColumn comboColumn = new DataGridViewComboBoxColumn(); but then I am not able to serialize the new bind because I'm trying to serialize the datagridview and not data table which is impossible. So I want to try if there's any way to add combobox column to data table and not to datagridview so that I'm able to serialize.

Hope I make sense.