Re: Zero's before number. - C# Discussion Boards

0x3c03-Jun-09 23:15

3-Jun-09 23:15

00987 is the same as 987. If you read it into an integer variable, then it will remove leading zeros. If you want to display it as it is in the database, then convert it to a string instead of an integer

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And the reality
Between the motion
And the act
Falls the Shadow

Christian Graus3-Jun-09 23:17

Christian Graus

3-Jun-09 23:17

Do you know how to count ?

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Pete O'Hanlon3-Jun-09 23:22

Pete O'Hanlon

3-Jun-09 23:22

This data is stored as a string in your database. 00987 is exactly the same as 987 - I assume you want it displaying as 00987; in which case you need to use a string to display it.

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CPallini4-Jun-09 0:54

CPallini

4-Jun-09 0:54

Satish - Developer wrote:
when i read the value(00987) into the integer variable, then it contiana value as 987.

I need the value in integer variable as same(00987)

You have to do nothing (or just review your basic math course material), since 000987 = 987 holds for a integer.
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Lutosław4-Jun-09 1:46

Lutosław

4-Jun-09 1:46

I suppose that what you really wanted to ask is: how to read a data with leading zeros and don't loose these zeros.
You have two possibilities:
- Store the number asa string in your application and parse it each time you need it for calculations.
- Create a structure which would store a number of zeros (I would do it this way).

internal struct IntWithZeros
{
	private int zerosCount, value;

	public static implicit operator int(IntWithZeros x)
	{
		return x.value;
	}

	// overload other required operators to preserve zerosCount

	public static IntWithZeros Parse(string data)
	{
		IntWithZeros ret;
		ret.zerosCount = 0;
		while (data.Length > ret.zerosCount && data[ret.zerosCount] == '0') {
			ret.zerosCount++;
		}
		ret.value = int.Parse(data);
		return ret;
	}
	public override string ToString()
	{
		string s = value.ToString();
		return s.PadLeft(s.Length + zerosCount, '0');
	}
}

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Searril4-Jun-09 3:13

Searril

4-Jun-09 3:13

private void btnUseLeadingZero_Click(object sender, EventArgs e)
        {
            int MyNumber = 987;
            string MyNumberWithLeadingZero = MyNumber.ToString("00000");
            MessageBox.Show(MyNumberWithLeadingZero);
            //displays 00987
        }

Lutosław6-Jun-09 1:50

Lutosław

6-Jun-09 1:50

Simplier and better. 5 from me.

Greetings - Jacek Gajek

Check this out guys!

Rajdeep.NET3-Jun-09 22:24

3-Jun-09 22:24

Hi guys,

I had just posted a question about getting the path of the current executable. Thanks to all those who responded. However, I found this peice of code while googling just now, and this really seems to work:

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            System.Reflection.Assembly a = System.Reflection.Assembly.GetEntryAssembly();
            string baseDir = System.IO.Path.GetDirectoryName(a.Location);
            Console.WriteLine(baseDir);
            Console.ReadLine();
        }
    }
}

Here, Console.WriteLine(baseDir); prints the path of the .exe.

However, I want that the current executable be copied and moved using the System.IO; .NET class library namespace.

Some thing like this:

Instead of printing the path address with Console.WriteLine(baseDir);, I want to replace it with: System.IO.File.Copy("basedir", "C:\\desiredlocation");

But this code:

System.IO.File.Copy("basedir", "C:\\desiredlocation");

doesn't seem to work.

Can anyone help me out?

0x3c03-Jun-09 22:27

3-Jun-09 22:27

ShreeR.Bhattacharjee wrote:
System.IO.File.Copy("basedir", "C:\\desiredlocation");

'basedir' shouldn't be in quotes. And that code snippet will copy the entire directory. Useful if you have references you want preserving, but if you just want to copy the executable, you should be specifying a.Location as the first parameter of File.Copy, not basedir

Between the idea
And the reality
Between the motion
And the act
Falls the Shadow

Rajdeep.NET3-Jun-09 23:01

3-Jun-09 23:01

Hi Computa,

The case remains same though I apply a.Location as the first parameter of File.Copy method.

Throws exception.

Exception type:
IOException
Exception details:
The target file "C:\\DesiredLocation" is a directory not a file.

Anyway, let me explain the problem more clearly. All I want to do is to copy only the .exe file to C:\\DesiredLocation.

Lemme know, if I need to be more comprehensive.

0x3c04-Jun-09 1:36

4-Jun-09 1:36

$Shucks | :-\$ Try (new System.Uri(a.CodeBase)).AbsolutePath according to MSDN. This is because the CodeBase property is the fully escaped URL, including the file:// part. File.Copy won't accept this, so you need to create a new Uri, which parses it properly, and use the AbsolutePath property (which gets the proper name)

Between the idea
And the reality
Between the motion
And the act
Falls the Shadow

Pete O'Hanlon3-Jun-09 22:28

Pete O'Hanlon

3-Jun-09 22:28

I assume that you want to move the file you have referenced in the baseDir variable to the new location - this means you shouldn't put quotes around baseDir in File.Copy, because that's a string literal, not a variable. Change it to

File.Copy(baseDir, @"c:\desiredlocation");

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

Rajdeep.NET3-Jun-09 22:52

3-Jun-09 22:52

Hi Pete,

The code:

File.Copy(baseDir, @"c:\desiredlocation");

throws exception!

Exception type:
IOException
Exception Details:
The target file "C:\desiredlocation" is a diretory, not a file.

PS: I want to copy the exe file namely 'ConsoleApplication1.exe' to C:\desiredlocation and not he entire project.

Any ideas?

0x3c03-Jun-09 22:58

3-Jun-09 22:58

You may want to re-read my answer

Between the idea
And the reality
Between the motion
And the act
Falls the Shadow

Rajdeep.NET3-Jun-09 22:53

3-Jun-09 22:53

Hi Pete,

The code:

File.Copy(baseDir, @"c:\desiredlocation");

Alan N3-Jun-09 23:10

Alan N

3-Jun-09 23:10

Hey, I read the documentation for you!

public static void Copy (
	string sourceFileName,
	string destFileName
)
 
Parameters
sourceFileName
The file to copy. 

destFileName
The name of the destination file. This cannot be a directory or an existing file.

Alan.

J4amieC3-Jun-09 23:48

J4amieC

3-Jun-09 23:48

Hmm, copy the currently running executable..... we had another guy here recently trying to achieve the same.

Rajdeep.NET4-Jun-09 6:10

4-Jun-09 6:10

Copying the current execuable is a very difficult task and indeed a difficult task. I dont care who that another guy was and what he wanted to achieve.

J4amieC5-Jun-09 0:08

J4amieC

5-Jun-09 0:08

You are the other guy you twat!

Rajesh R Subramanian3-Jun-09 23:57

Rajesh R Subramanian

3-Jun-09 23:57

Why do you have to copy the current executable to another location? What kind of application are you writing?

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EliottA4-Jun-09 7:15

EliottA

4-Jun-09 7:15

This user goes by another name, Rajdeep.Net, who has been repeatidly asking for code or help with intentions to create malicious and/or harmful applications. His previous posts clearly indicate it, and it's undeniable. After so many complaints from users here, he resorted to reregistering under a different name, specifying a different country of origin.

I hate him.

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