How to manually assign an item in a SqlDataReader

[joelranck]

I'm having a problem figuring out how to evaluate a value read from a
SqlConnection and then assign a column based on that evaluation into my
DataGrid. Basically when the DB is queried I want to check if a value
is 1 or 0 in a specific field.. If so then assign corresponding Yes or
No into the DataGrid. The question is really two parts how can I
evaluate a DataReader value and how can I manually bind a new value
into a DataGrid?

Thanks a ton.