C# ADO.NET: nulls and DbNull — is there more efficient syntax?

Question

I\'ve got a DateTime? that I\'m trying to insert into a field using a DbParameter. I\'m creating the parameter like so:

DbParameter         


        

Answer 1

I think the error with your second attempt is due to nullableDate.Value and DBNull.Value being different types and the ternary operator needing to pick one type to return in both cases. I don't have the environment to test this but I think this should work for you:

datePrm.Value = nullableDate.HasValue ? (object)nullableDate.Value : (object)DBNull.Value;