Converting Byte Array to Integer Array - C# Discussion Boards

computerpublic12-Feb-14 7:31

12-Feb-14 7:31

//I AM TRYING TO REVERSE THE PROCESS OF BYTE TO DECIMAL CONVERSION WHICH WAS SUCCESSFUL. I THOUGHT THAT REVERSING THE CODE WOULD REVERSE THE PROCESS AND DECIMAL TO BYTE CONVERSION, BUT IT IS NOT WORKING.

<pre>using System;//done
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Applica
{
    class Program
    {
        static void Main(string[] args)
        {
            long Totbyte = 0;
            string filePath = null;
            DirectoryInfo da = new DirectoryInfo("C:\\Folder");
            FileInfo[] Arr = da.GetFiles();

            foreach (FileInfo ap in Arr)
            {
                Totbyte = ap.Length;
                filePath = ap.FullName;
            }
            Console.WriteLine("Total Bytes = {0} bytes", Totbyte);
            string temPath = Path.GetTempFileName();
            byte[] data = new byte[Totbyte];

            if (File.Exists(temPath))
            {
                data = File.ReadAllBytes(filePath);
                File.WriteAllBytes(temPath, data);
            }
            decimal[] arry = new decimal[Totbyte];
            for (int count = 0; count < data.Length; count++)
            {
                arry[count] = data[count];
             //   Console.WriteLine("Byte to Decimal = {0},,,,,, count = {1}", arry[count], count);
            }
            ///////////ABOVE: READ IN FILE AND CHANGE EACH BYTE TO DECIMAL
            ///////////BELOW: TRYING TO REVERSE THE ABOVE PROCESS
            byte[] data2 = new byte[Totbyte];
            for (int count = 0; count < arry.Length; count++)
            {
                data2[count] = arry[count];
            }
            FileStream file = new FileStream(filePath, FileMode.Create);
            BinaryWriter binarystream = new BinaryWriter(file);
            binarystream.Write(data2);
            binarystream.Close();
        }
    }
}

harold aptroot12-Feb-14 8:55

harold aptroot

12-Feb-14 8:55

Follow the error message. It tells you what to do. But I'm a nice guy (well, sometimes), so here you go:

using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Text;
 
namespace Applica
{
    class Program
    {
        static void Main(string[] args)
        {
            long Totbyte = 0;
            string filePath = null;
            DirectoryInfo da = new DirectoryInfo("C:\\Folder");
            FileInfo[] Arr = da.GetFiles();
 
            foreach (FileInfo ap in Arr)
            {
                Totbyte = ap.Length;
                filePath = ap.FullName;
            }
            Console.WriteLine("Total Bytes = {0} bytes", Totbyte);
            string temPath = Path.GetTempFileName();
            byte[] data = new byte[Totbyte];
 
            if (File.Exists(temPath))
            {
                data = File.ReadAllBytes(filePath);
                File.WriteAllBytes(temPath, data);
            }
            decimal[] arry = new decimal[Totbyte];
            for (int count = 0; count < data.Length; count++)
            {
                arry[count] = data[count];
             //   Console.WriteLine("Byte to Decimal = {0},,,,,, count = {1}", arry[count], count);
            }
            ///////////ABOVE: READ IN FILE AND CHANGE EACH BYTE TO DECIMAL
            ///////////BELOW: TRYING TO REVERSE THE ABOVE PROCESS
            byte[] data2 = new byte[Totbyte];
            for (int count = 0; count < arry.Length; count++)
            {
                data2[count] = (byte)arry[count];
            }
            FileStream file = new FileStream(filePath, FileMode.Create);
            BinaryWriter binarystream = new BinaryWriter(file);
            binarystream.Write(data2);
            binarystream.Close();
        }
    }
}

By the way, may I ask what this is for? Converting all the bytes of a file to decimals is a pretty weird thing to do. I have a gut feeling there might be a nicer solution.

computerpublic12-Feb-14 9:08

12-Feb-14 9:08

I did figure out the casting (byte) from one of my books.
Also filePath (FileStream file = new FileStream(filePath, FileMode.Create)) did not work. I had to replace filePath with an actual path. When I open the file, it was looked like garbage. It was not the same file that I started with. It got corrupted at some point.

What is it for: Well it is a very long story and really don't mind sharing my thoughts after I prove my theory. I would be more than happy to explore a nicer, shorter, more stream line and robust solution. Please assist.

harold aptroot12-Feb-14 9:16

harold aptroot

12-Feb-14 9:16

You might be interested in File.WriteAllBytes(path, bytes) to making writing them back a little simpler.

computerpublic wrote:
When I open the file, it was looked like garbage. It was not the same file that I started with. It got corrupted at some point.

Is that with the code I posted? Or else, with what code?

computerpublic12-Feb-14 9:24

12-Feb-14 9:24

My first idea was to use WriteAllBytes, but books did not talk about it. And the online resources did not show me properly how to code it. I found the other solution which i used, but I am getting garbage. Can you please show me how to make it work?

harold aptroot12-Feb-14 9:49

harold aptroot

12-Feb-14 9:49

It should work without special effort. Did you verify that the bytes you give it are OK?

Converting Byte Array to Integer Array

Richard Deeming11-Feb-14 9:34

Richard Deeming

11-Feb-14 9:34

computerpublic wrote:
You keep saying you don't know what I am trying to do. I think it is pretty obvious that ...

Of course it's obvious to you - you're the one who's having the problems. The trick is to clearly explain the problem to someone else, remembering that we can't see your screen, access your hard-drive, or read your mind.

None of the questions you've posted in the last couple of days have had a clear explanation of what you're trying to do. They've mostly been code-dumps with a few cryptic comments along the lines of "this line doesn't work". The code you've posted doesn't seem to make any logical sense, because you haven't explained what you're trying to do.

The code you posted in this question is almost identical to the code you posted in the question below[^]. It seems you either didn't read Pete's answer, or you didn't understand it, because now you're just calling a random method and trying to assign the result to an incompatible type. Reposting a virtually identical question whilst ignoring the previous answers is not a good way to get people to help you!

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

computerpublic11-Feb-14 4:10

Re: Converting Byte Array to Integer Array

11-Feb-14 4:10

<pre>//I AM TRYING TRANPOSE ALL THE BYTE ARRAY VALUES INTO INTEGER VALUES IN THE INTEGER ARRAY
//THE LAST LINE DOES NOT WORK
using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Applica
{
    class Program
    {
        static void Main(string[] args)
        {
            long Totbyte = 0;
            string filePath = null;
            DirectoryInfo da = new DirectoryInfo("C:\\Folder");
            FileInfo[] Arr = da.GetFiles();

            foreach (FileInfo ap in Arr)
            {
                Totbyte = ap.Length;
                filePath = ap.FullName;
            }

            string temPath = Path.GetTempFileName();
            byte[] data = new byte[Totbyte];////////////////////////BYTE ARRAY

            if (File.Exists(temPath))
            {
                data = File.ReadAllBytes(filePath);
                File.WriteAllBytes(temPath, data);
            }//I AM TRYING TRANPOSE ALL THE BYTE ARRAY VALUES INTO INTEGER VALUES IN THE INTEGER ARRAY
            int[] arry = new int[Totbyte];////////////////////////INTEGER ARRAY
            for (int count = 0; count < data.Length; count++)
            {
                arry[count] = Convert.ToDecimal(BitConverter.ToInt(data,count));//THIS LINE DOES NOT WORK
            }
        }
    }
}

Pete O'Hanlon11-Feb-14 4:15

Pete O'Hanlon

11-Feb-14 4:15

You have created arry as a byte array of integers and you are trying to stuff a decimal value into it. There's no need to do Convert.ToDecimal on the output of BitConverter (and it should be ToInt32 - not ToInt).

Re: Converting Byte Array to Integer Array

computerpublic11-Feb-14 4:31

Re: Converting Byte Array to Integer Array

11-Feb-14 4:31

I was expected a byte value to be no larger than 255, but I am now getting values 10 digits long. Please kindly explain what is going on.

Pete O'Hanlon11-Feb-14 4:42

Pete O'Hanlon

11-Feb-14 4:42

The issue you are hitting is because you are misusing BitConverter[^]. If you just want to convert a byte to an int, then you can simply assign the values across if you want to because a byte will upcast into an int quite happily. There's no need to do a conversion in this case.

Payment Using Visa Cards

Zeyad Jalil11-Feb-14 1:58

Zeyad Jalil

11-Feb-14 1:58

Hi All,

We Develop a financial system which is a desktop c# application and we need to add a functionality that allow to pay by the visa cards, my question is what I should have to develop this functionality and what is the best 3rd party to use, and is the 3rd party should have an API's to use it in my Application.

Please help me ASAP because I'm a new in this.

Thanks for your efforts.

V.11-Feb-14 2:18

11-Feb-14 2:18

never done this, but my initial idea would be to get a hold on the party responsible of payment.
Usually payments go through a TRUSTED third party provider. In Belgium we have "Ogone" for example. Your application forwards payment details to this company who will ask the user for credit card details. Then the provider, when payment is approved redirects the user back to you and will notify you if payment was done or not.

So first thing to do is get in contact with such a provider.

Hope this helps.

V.

(MQOTD rules and previous solutions)

OriginalGriff11-Feb-14 3:03

OriginalGriff

11-Feb-14 3:03

V is absolutely right - go with a reliable card transaction service company.

And this is really, really important:

Never, ever, accept code from a insecure website to handle anything to do with real money.
You do not know who is giving you the code, you do not know what it does, you do not know that it places the monies correctly into the appropriate account, without passing the details to any third parties.

Only get such code from reputable card transaction service companies - the scope for fraud otherwise is far too large. And remember, you personally could be liable for any monies lost if your action is seen to be negligent - which getting your code from a public forum would most certainly be!

Which means: Don't ask here - always go back to them for assistance. Don't worry about looking stupid or lacking in knowledge: it's a lot, lot better than looking at a prison cell... Laugh | :laugh:

Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952)
Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)

Dave Kreskowiak11-Feb-14 7:27

Dave Kreskowiak

11-Feb-14 7:27

Too bad we can only click the UpVote button once.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

AmitGajjar11-Feb-14 20:00

AmitGajjar

11-Feb-14 20:00

You can create multiple account to UpVote... Smile | :)

Thanks
-Amit Gajjar

Dave Kreskowiak12-Feb-14 4:22

Dave Kreskowiak

12-Feb-14 4:22

Yeah, I'm not into having socket puppets.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

V.11-Feb-14 20:28

11-Feb-14 20:28

OriginalGriff wrote:
V is absolutely right

I should print this in large curly letters and frame it Big Grin | :-D

V.

(MQOTD rules and previous solutions)