How do I use File.ReadAllBytes In chunks

Question

I am using this code

        string location1 = textBox2.Text;
        byte[] bytes = File.ReadAllBytes(location1);
        string text = (Convert.ToBase64S         


        

Answer 1

The bytesRead is just the count of bytes read.

Here is some block reading

        var path = @"C:\Temp\file.blob";

        using (Stream f = new FileStream(path, FileMode.Open))
        {
            int offset = 0;
            long len = f.Length;
            byte[] buffer = new byte[len];

            int readLen = 100; // using chunks of 100 for default

            while (offset != len)
            {
                if (offset + readLen > len)
                {
                    readLen = (int) len - offset;
                }
                offset += f.Read(buffer, offset, readLen);
            }
        }

Now you have the bytes in the buffer and can convert them as you like.

for example inside the "using stream":

            string result = string.Empty;

            foreach (byte b in buffer)
            {
                result += Convert.ToChar(b);
            }