How can I write MemoryStream to byte[] [duplicate]

Possible Duplicate:
Creating a byte array from a stream

I'm trying to create text file in memory and write it byte[]. How can I do this?

public byte[] GetBytes()
{
    MemoryStream fs = new MemoryStream();
    TextWriter tx = new StreamWriter(fs);

    tx.WriteLine("1111");
    tx.WriteLine("2222");
    tx.WriteLine("3333");

    tx.Flush();
    fs.Flush();

    byte[] bytes = new byte[fs.Length];
    fs.Read(bytes,0,fs.Length);

    return bytes;
}

But it does not work because of data length

Solution 1:

How about:

byte[] bytes = fs.ToArray();

Solution 2:

Try the following code:

public byte[] GetBytes()
{
MemoryStream fs = new MemoryStream();
TextWriter tx = new StreamWriter(fs);

tx.WriteLine("1111");
tx.WriteLine("2222");
tx.WriteLine("3333");

tx.Flush();
fs.Flush();
byte[] bytes = fs.ToArray();
return bytes;
}

Solution 3:

byte[] ObjectToByteArray(Object obj)
{
    using (MemoryStream ms = new MemoryStream())
    {
        BinaryFormatter b = new BinaryFormatter();
        b.Serialize(ms, obj);
        return ms.ToArray();
    }
}

Solution 4:

    public byte[] GetBytes()
    {
        MemoryStream fs = new MemoryStream();
        TextWriter tx = new StreamWriter(fs);

        tx.WriteLine("1111");
        tx.WriteLine("2222");
        tx.WriteLine("3333");

        tx.Flush();
        fs.Flush();

        fs.Position = 0;

        byte[] bytes = new byte[fs.Length];
        fs.Read(bytes, 0, bytes.Length);

        return bytes;
    }