CSharp: Read bytes from File

Question:

How to read bytes from a file?
How to read a file as a byte array?

Answer:

There is a simple method for it

byte[] bytes = File.ReadAllBytes("c:\folder\file.ext");

There is a way less memory intensive

Stream myDestinationStream = ...;

using(Stream mySource = File.OpenRead(myFilePath)) {
    byte[] myBuffer = new byte[2048];
    int myBytesRead;
    while((myBytesRead= mySource.Read(myBuffer , 0, myBuffer .Length)) > 0) {
        myDestinationStream.Write(myBuffer , 0, myBytesRead);
    }
}