>>>>>>>>When I change to the following:
>>>>>>>>

>>>>>>>>param.SqlDbType = System.Data.SqlDbType.Decimal;
>>>>>>>>param.Value = 0.00;  
>>>>>>>>

>>>>>>>>
>>>>>>>>I get compiler error.
>>>>>>>
>>>>>>>What?
>>>>>>
>>>>>>What I wrote in the other message about "The explicit conversion exists (are you missing a cast?)"
>>>>>
>>>>>
>>>>>That works for me:
>>>>>

>>>>> SqlCommand sql = new SqlCommand();
>>>>>sql.Parameters.Add("asd");
>>>>>sql.Parameters[0].SqlDbType = SqlDbType.Decimal;
>>>>>sql.Parameters[0].Size = 10;
>>>>>sql.Parameters[0].Value = 0.00;
>>>>>sql.Parameters[0].Direction = ParameterDirection.InputOutput;
>>>>>

>>>>
>>>>The above code does not produce the compilere error. But when I call the stored procedure I get error "Error converting data type numeric to numeric"
>>>
>>>Try Naomi's suggestion with Precision and Scale.
>>
>>I will; thank you. But does setting the type in my stored procedure as "numeric(10,2)" correct?
>
>Sure Numeric is fine.

Here is one thing that seems to be strange to me. As I mentioned to William, if I comment out the line that set the data type (SqlDbType) and set the value as following:

sql.Parameters[0].value = "6.61";

everything works. I don't understand how it works since the number is in quotes. But the value that is passed to the stored procedure is numeric. But it works so I should not complain <g>.