[Microsoft.SqlServer.Server.SqlProcedure]
public static void StoredProcReturnResultSet()
{
    // Create the record and specify the metadata for the columns.
    SqlDataRecord record = new SqlDataRecord(
        new SqlMetaData("col1", SqlDbType.NVarChar, 100),
        new SqlMetaData("col2", SqlDbType.Int));

    // Mark the begining of the result-set.
    SqlContext.Pipe.SendResultsStart(record);

    // Send 10 rows back to the client.
    for (int i = 0; i < 10; i++)
    {
        // Set values for each column in the row.
        record.SetString(0, "row " + i.ToString());
        record.SetInt32(1, i);

        // Send the row back to the client.
        SqlContext.Pipe.SendResultsRow(record);
    }

    // Mark the end of the result-set.
    SqlContext.Pipe.SendResultsEnd();
}