Do you mean you want to display something using DataGridViewCombobox?
You can set the datasource, DisplayMember, ValueMember properties of DataGridViewCombobox.
datagridviewcomboboxcolumn1.DataSource = datatable1;
datagridviewcomboboxcolumn1.DisplayMember = "col01";
datagridviewcomboboxcolumn1.ValueMember = "col02";
Best regards,
Ling Wang
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