In-Out Parameter for SqlCommand

Question

I have the following parameter for SqlCommand. How do I make it to both in and out the paramter value for the Stored Procedure.

 SqlCommand mySqlCommand = ne         


        

Answer 1

SqlParameter has a Direction enumeration. Set this value.

Then use the SqlCommand.Parameters.Add that takes a SqlParameter.

Parameter direction:

http://msdn.microsoft.com/en-us/library/system.data.parameterdirection.aspx

You then pull the value out after having called ExecuteNonQuery (for example), by getting the Value from the parameter out of the command collection:

myCommand.Parameters["@paramName"].Value

Can't remember, but I think there is a string indexer on that.

Alternatively, there is this one liner:

myCommand.Parameters.AddWithValue("@paramName", value).Direction = ParameterDirection.InputOutput;