bytearray - c# how to add byte to byte array

Question

How to add a byte to the beginning of an existing byte array? My goal is to make array what's 3 bytes long to 4 bytes. So that's why I need to add 00 padding in the beginning of it.

Answer 1

You can't do that. It's not possible to resize an array. You have to create a new array and copy the data to it:

bArray = AddByteToArray(bArray,  newByte);

code:

public byte[] AddByteToArray(byte[] bArray, byte newByte)
{
    byte[] newArray = new byte[bArray.Length + 1];
    bArray.CopyTo(newArray, 1);
    newArray[0] = newByte;
    return newArray;
}