Re: C# App to Split Files - C# Discussion Boards

17-Feb-12 9:40

By
stylesmylez

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace SplitFile
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private String _sPLITe = null;
//private SaveFileDialog sPLITeFM;
private void btnSplit_Click(object sender, EventArgs e)
{
//statusBar.Text = DateTime.Today;
OpenFileDialog dlg = new OpenFileDialog();

dlg.Title = "Open Photo";
dlg.Filter = "Windows Bitmap Files (*.bmp)|*.bmp"
+ "|All files (*.*)|*.*";

if (dlg.ShowDialog() == DialogResult.OK)
{
try
{
//pbxPhoto.Image = new Bitmap(dlg.OpenFile());
_sPLITe = dlg.FileName;
Split300DividedbyLenthorSizeOfFile(_sPLITe);
}
catch (Exception ex)
{
MessageBox.Show("Unable to load file: " + ex.Message);
}
}

dlg.Dispose();
}

private void Split300DividedbyLenthorSizeOfFile(string inputFile)
{

//string inputFile = txtInputFile.Text; // Substitute this with your Input File
FileStream fs = new FileStream(inputFile, FileMode.Open, FileAccess.Read);

//int numberOfFilesx = Convert.ToInt32(txtChunks.Text);
//int sizeOfEachFilex = (int)Math.Ceiling((double)fs.Length);

//txtChunks.Text= string txtChunksx;
////new byte [(int)fs.Length / 300000000]);

//int numberOfFilexs =
// (Convert.ToInt32(fs.Length / 1500000));
//int numberOfFiles = Convert.ToInt32(txtChunks.Text);

int sizeOfEachFile =
(int)Math.Ceiling((double)
fs.Length /
//Devided By inserted Peace to get Amount example 3000/1500=2
(Convert.ToInt32(fs.Length / 1500000)));

for (int i = 1; i <=
//Devided By inserted Peace MB to get Amount. example 3000/1500=2
(Convert.ToInt32(fs.Length / 1500000))

; i++)
{
string baseFileName = Path.GetFileNameWithoutExtension(inputFile);
string extension = Path.GetExtension(inputFile);
FileStream outputFile = new FileStream(Path.GetDirectoryName(inputFile) + "\\" + baseFileName + "." + i.ToString().PadLeft(5, Convert.ToChar("0")) + extension + ".tmp", FileMode.Create, FileAccess.Write);
int bytesRead = 0;
byte[] buffer = new byte[sizeOfEachFile];

if ((bytesRead = fs.Read(buffer, 0, sizeOfEachFile)) > 0)
{
outputFile.Write(buffer, 0, bytesRead);
}
outputFile.Close();
}
fs.Close();
}

private void Merge300DividedbyLenthorSizeOfFile(string outPath)
{
//string outPath = txtInputFolder.Text; // Substitute this with your Input Folder
string[] tmpFiles = Directory.GetFiles(outPath, "*.tmp");
FileStream outputFile = null;
string prevFileName = "";

foreach (string tempFile in tmpFiles)
{

string fileName = Path.GetFileNameWithoutExtension(tempFile);
string baseFileName = fileName.Substring(0, fileName.IndexOf(Convert.ToChar(".")));
string extension = Path.GetExtension(fileName);

if (!prevFileName.Equals(baseFileName))
{
if (outputFile != null)
{
outputFile.Flush();
outputFile.Close();
}
outputFile = new FileStream(outPath + baseFileName + extension, FileMode.OpenOrCreate, FileAccess.Write);
}

int bytesRead = 0;
byte[] buffer = new byte[1024];
FileStream inputTempFile = new FileStream(tempFile, FileMode.OpenOrCreate, FileAccess.Read);

while ((bytesRead = inputTempFile.Read(buffer, 0, 1024)) > 0)
outputFile.Write(buffer, 0, bytesRead);

inputTempFile.Close();
File.Delete(tempFile);
prevFileName = baseFileName;
}
outputFile.Close();
}

private void btnMerge_Click(object sender, EventArgs e)
{
//statusBar.Text = DateTime.Today;
FolderBrowserDialog dlg = new FolderBrowserDialog();

if (dlg.ShowDialog() == DialogResult.OK)
{
try
{
//pbxPhoto.Image = new Bitmap(dlg.OpenFile());
//_sPLITe = dlg.FileName;
_sPLITe = dlg.SelectedPath;
Merge300DividedbyLenthorSizeOfFile(_sPLITe);
}
catch (Exception ex)
{
MessageBox.Show("Unable to load file: " + ex.Message);
}
}

}
}
}

<pre lang="vb">By
stylesmylez</pre>

Wes Aday17-Feb-12 10:16

Wes Aday

17-Feb-12 10:16

Is there a question mixed in there somewhere?

Why is common sense not common?
Never argue with an idiot. They will drag you down to their level where they are an expert.
Sometimes it takes a lot of work to be lazy
Individuality is fine, as long as we do it together - F. Burns

stylez50017-Feb-12 12:39

17-Feb-12 12:39

what is that soposto mean??

That C# code is for those who want to create split file app jst copy n paste n modify put in buttons etc.

At one point i needed one so i put this out for those who where in my position!!!!!

Wes Aday17-Feb-12 12:48

Wes Aday

17-Feb-12 12:48

Then write an article instead of posting code in forums where questions are asked...

Dave Kreskowiak17-Feb-12 17:07

Dave Kreskowiak

17-Feb-12 17:07

It's "supposed". TXTSPEAK is heavily frowed upon here as it makes you look childish.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Dave Kreskowiak17-Feb-12 17:12

Dave Kreskowiak

17-Feb-12 17:12

OK, great. The problem you didn't consider is that the forums fill up so fast nobody will see your code by the end of next week because it'll be buried by a dozen pages of forum posts.

Yeah and don't think "Oh it'll still be visible because of Google." Think again. If everyone used Google people would be finding their own answers instead of relying on the regulars here to spoon-feed them answers.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Pete O'Hanlon18-Feb-12 2:12

Pete O'Hanlon

18-Feb-12 2:12

It's just a shame that you ignored the tips and tricks, and articles sections where this would have ben much better received.

*pre-emptive celebratory nipple tassle jiggle* - Sean Ewington

"Mind bleach! Send me mind bleach!" - Nagy Vilmos

My blog | My articles | MoXAML PowerToys | Mole 2010 - debugging made easier - my favourite utility

R. Giskard Reventlov17-Feb-12 12:10

R. Giskard Reventlov

17-Feb-12 12:10

Homework?

"If you think it's expensive to hire a professional to do the job, wait until you hire an amateur." Red Adair.
nils illegitimus carborundum

me, me, me

stylez50017-Feb-12 12:38

17-Feb-12 12:38

SilimSayo17-Feb-12 12:43

SilimSayo

17-Feb-12 12:43

If you look at the very first item in this forum, it says "How to ask a question". This forum is for asking questions. So when you post something like that, we are left wondering what the questions is. In any case, you could have been more clear by stating that you're not asking a question(which the purpose of the forum) but posting a solution to a problem you encountered. Nonetheless, thanks for sharing.

stylez50017-Feb-12 12:55

17-Feb-12 12:55

Your welcome

stylez50017-Feb-12 12:42

17-Feb-12 12:42

you right home work 4 your self

Richard Andrew x6417-Feb-12 16:08

Richard Andrew x64

17-Feb-12 16:08

You won't last long here with that attitude.

The difficult we do right away...
...the impossible takes slightly longer.

Shared Data

Simon_Whale17-Feb-12 5:41

17-Feb-12 5:41

Right now due to increasing our recruitment possibilities of new staff we are moving over to C#

What is the best way that I can go about making a data collection object available to all forms in C#

In Visual Basic we can use a module and put in a friend based variable i.e. friend GlobalData as string. (the string variable is the easiest way I could explain this as an example!) This then makes the variable available to any form / class in the assembly.

Is there a way of doing this in C# or do I have to look at passing the information back and forth between each form?

Many Thanks
Simon

modified 17-Feb-12 11:50am.

Pete O'Hanlon17-Feb-12 5:54

Pete O'Hanlon

17-Feb-12 5:54

All you need do is create a static property or member.

*pre-emptive celebratory nipple tassle jiggle* - Sean Ewington

"Mind bleach! Send me mind bleach!" - Nagy Vilmos

My blog | My articles | MoXAML PowerToys | Mole 2010 - debugging made easier - my favourite utility

Simon_Whale17-Feb-12 6:14

17-Feb-12 6:14

Always the simplest Smile | :)

Thanks Pete

BobJanova17-Feb-12 6:05

BobJanova

17-Feb-12 6:05

A single static instance of a data storage class, probably. You could make the data storage class itself static but that makes it trickier to, for example, serialise it. Put this static instance somewhere that all classes have access to. For example

public class DataStore {
 public int AwesomenessFactor;
 public string Description;

 public static DataStore Global = new DataStore();
}

And access it (from anywhere) with

DataStore.Global.(field)

Try to restrict the amount of global data you have, though. Global data is generally symptomatic of a poor design, because (by definition) it's coupled to everything, and excessive coupling is a maintenance problem.

Simon_Whale17-Feb-12 6:10

17-Feb-12 6:10

The use of "Global" data is firstly limited to the search of a client, on a successful search it retrieves their insurance portfolio.

i.e. Search For me Simon Whale

it will return a list of all the quotes (this is restricted to a predefined date range) and live insurance policies that I have and its associated child objects only. This accommodates the archive strategy that management has made as a major requirement of the back office system.

This is something that I have to fight / deal with the managements requests on the system design.

BillWoodruff18-Feb-12 0:42

BillWoodruff

18-Feb-12 0:42

This does imply to me that there is a back-end database here of all Customers, and you are querying it to retrieve a specific Customer's data.

In this context, the concerns Bob J. raises here about whether this is a multi-user access scenario, where threading may come into play, and where many users may be viewing the same Customer's data seem very salient. Who gets to change said data ? Who gets read-only permissions.

best, Bill

"The first principle is that you must not fool yourself, and you are the easiest person to fool." Richard Feynman

Simon_Whale19-Feb-12 5:58

19-Feb-12 5:58

Thanks for the response Bill.

I have taken into account the business logic of opening more than one client at a time.

My question at the time was what was the best way of passing this collection of client information through 1 to many different forms, which I knew that I was doing but not in the best way but with the moving towards c# was after how to do it in c# and BETTER.

Luc pointed my towards a more OO method of passing the data between forms by using properties

Thanks
Simon

Message Removed

17-Feb-12 6:15

N_tro_P

17-Feb-12 6:15

Message Removed

Simon_Whale17-Feb-12 6:27

17-Feb-12 6:27

may be Global was the wrong term to use. What I am trying to do is at the beginning of the process load a client's insurance portfolio which could include multiple policies and or multiple properties and cars.

I then need to pass this through to various different forms in the main application and I am trying to find out to do this in C#

Luc Pattyn17-Feb-12 6:39

Luc Pattyn

17-Feb-12 6:39

I suggest you keep such data in a Customer object, then pass this object to each and every Form that needs it, with an explicit parameter in the Form's constructor, or through a dedicated public property. That is the OO way of doing things: provide what is needed where and when it is needed.

Making things global isn't a very good idea, as each and every code snippet now can access and modify such data, making the whole app less robust and harder to debug.

Smile | :)

Luc Pattyn [My Articles] Nil Volentibus Arduum

Simon_Whale17-Feb-12 6:42