FileInfo Get File Bytes

1. approach

FileStream fs = myfileInfo.OpenRead();        
int bytesCount =(int)fs.Length;
byte[] bytes = new byte[bytesCount];
int bytesRead = fs.Read(bytes, 0, bytesCount);
fs.Close();

2. approach

byte[] bytes = System.IO.File.ReadAllBytes(myfileInfo.FullName);