structure array to byte array

using System.Runtime.Serialization.Formatters.Binary;

[Serializable]
    public struct test
    {
        public byte itemcode;
        public string itemname;
        //test* p;
    }

public static class TestSerializer{    
    public static byte[] Serialize(test[] t)
        {
            byte[] result;
            BinaryFormatter bF = new BinaryFormatter();
            using (MemoryStream mS = new MemoryStream())
            {
                bF.Serialize(mS, t);
                mS.Position = 0;
                result = new byte[mS.Length];
                mS.Read(result, 0, result.Length);
            }
            return result;
        }

    public static test[] Deserialize(byte[] buffer)
        {
            test[] result;
            BinaryFormatter bf = new BinaryFormatter();
            using (MemoryStream mS = new MemoryStream())
            {
                mS.Write(buffer, 0, buffer.Length);
                mS.Position = 0;
             result =   (test[])bf.Deserialize(mS);
            }
            return result;
        }
}
    }

test[] t = new test[200];
byte[] tBin = TestSerializer.Serialize(t);