Loading a File into a Byte Array

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How to load a file into a byte array in Visual Basic .NET

        ' Open a file that is to be loaded into a byte array
        Dim oFile As System.IO.FileInfo
        oFile = New System.IO.FileInfo("byte-data.dat")

        Dim oFileStream As System.IO.FileStream = oFile.OpenRead()
        Dim lBytes As Long = oFileStream.Length

        If (lBytes > 0) Then
                Dim fileData(lBytes-1) As Byte

                ' Read the file into a byte array
                oFileStream.Read(fileData, 0, lBytes)
                oFileStream.Close()
        End If