Add checkbox to datagridview

I need to change the cell type of an unbound datagridview ROW to checkbox type at runtime. Optionally adding a row of all checkboxes or changing the default type to checkbox is also fine. I see many examples for setting a column type to checkbox but I don't see anything that operates at the row level. Even operating at the cell level would be fine.

Thanks.

What you are looking to do is not possible in regards to changing a column type at the row level only at the column level other then when in edit mode for a single cell which would take considerable amount of code but again is not possible as to what you want.