I am working on a social network, one of my procedures returns a VARCHAR output. So this is what I wrote:
SqlParameter job1 = cmd2.Parameters.Add("@job", SqlDbType.VarChar);
job1.Direction = ParameterDirection.Output;
However this error comes up:
String[1]: the Size property has an invalid size of 0.
You need to define a length when specifying the varchar
parameter:
SqlParameter job1 = cmd2.Parameters.Add("@job", SqlDbType.VarChar, 50);
You should use the same length as defined in your SQL Server stored procedure.
And btw: if your stored procedure also has no length defined (something like @job VARCHAR OUTPUT
) - then you've defined a varchar
string of 1 character length ......