title: In-Out Parameter for SqlCommand
body: <p>I have the following parameter for SqlCommand. How do I make it to both in and out the paramter value for the Stored Procedure.</p>
  
  <pre><code> SqlCommand mySqlCommand = new SqlCommand("aspInsertZipCode", mySqlConnection);
   mySqlCommand.CommandType = CommandType.StoredProcedure;
   mySqlCommand.Parameters.Add("@DataRows", dataStringToProcess.ToString());
  </code></pre>