.NET C# Get Byte array from a file

public static byte[] GetBytesFromFile(string file)

{

try

{

// check if this is a file name;

if (file == null)

return null;

if (file.Trim().Length == 0)

return null;

// get the size of the buffer

int bufferSize = (int)(new System.IO.FileInfo(file).Length);

// check if the file has anything.

if (bufferSize == 0)

return null;

// create the buffer with the proper size

byte[] buffer = new byte[bufferSize];

// create the stream

System.IO.FileStream fs =  new System.IO.FileStream(file, System.IO.FileMode.Open);

// create the reader of the stream

System.IO.BinaryReader reader = new System.IO.BinaryReader(fs);

// populate the buffer

buffer = reader.ReadBytes(bufferSize);

// Close the stream

fs.Close();

fs.Dispose();

// close the reader

reader.Close();

fs.Dispose();

return buffer;

}

catch (Exception ex)

{

System.Windows.Forms.MessageBox.Show("Please Make sure that the file is valid or is not in use. Details:\r\n" + ex.Message);

return null;

}

}