c# int to byte array code example

Example 1: c# class to byte array

// Convert an object to a byte array
private byte[] ObjectToByteArray(Object obj)
{
    if(obj == null)
        return null;

    BinaryFormatter bf = new BinaryFormatter();
    MemoryStream ms = new MemoryStream();
    bf.Serialize(ms, obj);

    return ms.ToArray();
}

// Convert a byte array to an Object
private Object ByteArrayToObject(byte[] arrBytes)
{
    MemoryStream memStream = new MemoryStream();
    BinaryFormatter binForm = new BinaryFormatter();
    memStream.Write(arrBytes, 0, arrBytes.Length);
    memStream.Seek(0, SeekOrigin.Begin);
    Object obj = (Object) binForm.Deserialize(memStream);

    return obj;
}

Example 2: c# get binary array from int

byte[] bytes = BitConverter.GetBytes(i);

Example 3: c# number to byte

public byte[] ConvertNumToByte(int Number)
{
  byte[] ByteArray = new byte[32];
  string BinString = Convert.ToString(Number, 2);
  char[] BinCharArray = BinString.ToCharArray();
  try
  {
    System.Array.Reverse(BinCharArray);
    if (BinCharArray != null && BinCharArray.Length > 0)
    {
      for (int index = 0; index < BinCharArray.Length; ++index)
      {
        ByteArray[index] = Convert.ToByte(Convert.ToString(BinCharArray[index]));
      }
    }
  }
  catch
  {
  }
  return ByteArray;
}