Re: Add five zéros on the left of int - C# Discussion Boards

abbd16-Feb-09 8:35

16-Feb-09 8:35

Hello,

I would add five zéros on the left of int, like this :
1------------->0000000001
345----------->0000000345
65576--------->0000065576

How i can make this? thank you verry mutch.

Re: Add five zéros on the left of int

Kristian Sixhøj16-Feb-09 8:38

Kristian Sixhøj

16-Feb-09 8:38

int number = 1;
string numberString = "00000" + number.ToString();
MessageBox.Show(numberString); // '000001'

Kristian Sixhoej
"You can always become better." - Tiger Woods

Re: Add five zéros on the left of int

abbd16-Feb-09 8:51

abbd

16-Feb-09 8:51

i would take the same numer of caraters, if i make this for the int 3456+"00000", there are 9 caracters, thank you verry mutch.

Re: Add five zéros on the left of int

carbon_golem16-Feb-09 9:06

carbon_golem

16-Feb-09 9:06

I think the best way to do this is with a custom formatter, that way you'll be able to reuse it. Google it.

I think what you're looking for though is this:

class Program {
        static void Main(string[] args) {
            Int32 number = 234;
            String s = number.ToString().PadLeft(9, '0');
            Console.WriteLine(s);
            Console.ReadLine();
        }
    }

Scott P

"Simplicity carried to the extreme becomes elegance."
-Jon Franklin

Re: Add five zéros on the left of int

Guffa16-Feb-09 9:09

Guffa

16-Feb-09 9:09

There are many, many ways...

What you want to do according to your question:

"00000" + number.ToString()

or

number.ToString("'00000'0")

or

string.Format("'00000'{0}", number)

or

new String('0', 5) + number.ToString()

or

number.ToString().Insert(0, "00000")

What you want to do according to your examples:

String.Format("{0:0000000000}", number)

or

number.ToString("0000000000")

or

number.ToString().PadLeft(10, '0')

Despite everything, the person most likely to be fooling you next is yourself.

Re: Add five zéros on the left of int

Rutvik Dave16-Feb-09 11:20

Rutvik Dave

16-Feb-09 11:20

wow... I just thought 2 from these.

Re: Add five zéros on the left of int

Eddy Vluggen16-Feb-09 9:11

Eddy Vluggen

16-Feb-09 9:11

Add the number "1000000000" to the int, that would give you this;

1------------->10000000001
345----------->10000000345
65576--------->10000065576

Now, convert them to a string, and loose the first character. That would give you these strings;

10000000001------------->0000000001
10000000345------------->0000000345
10000065576------------->0000065576

Enjoy Smile | :)

I are troll Smile | :)

Re: Add five zéros on the left of int

Guffa16-Feb-09 9:19

Guffa

16-Feb-09 9:19

Interresting solution. I overlooked that one. Smile | :)

Despite everything, the person most likely to be fooling you next is yourself.

Re: Add five zéros on the left of int

Tony Pottier16-Feb-09 9:22

Tony Pottier

16-Feb-09 9:22

Brilliant =)

Re: Add five zéros on the left of int

Eddy Vluggen16-Feb-09 11:04

Eddy Vluggen

16-Feb-09 11:04

Not the most elegant and simple, obvious. It's just a fun question that has lots of possible solutions. Some solutions even make code-obfuscation irrelevant Laugh | :laugh:

I are troll Smile | :)

Re: Add five zéros on the left of int

Guffa16-Feb-09 12:12

Guffa

16-Feb-09 12:12

There sure are some interresting solutions. Here's an almost completely useless way of doing it:

String.Join(null,number.ToString().ToCharArray().Reverse().Select(c=>c.ToString()).Concat(new int[10].Select(i=>i.ToString())).Take(10).Reverse().ToArray())

Wink | ;)

Despite everything, the person most likely to be fooling you next is yourself.

Re: Add five zéros on the left of int

Eddy Vluggen16-Feb-09 20:36

Eddy Vluggen

16-Feb-09 20:36

LINQ!

I haven't done much with Linq yet, but I'll take the time for it this weekend. It's turning up at more and more places, and most people agree that it's a good thing.

..and that would be a better idea than to write a recursive method to padd zeroes, wouldn't it? Laugh | :laugh:

I are troll Smile | :)

Re: Add five zéros on the left of int

Rutvik Dave16-Feb-09 11:22

Rutvik Dave

16-Feb-09 11:22

there are too many ways of doing same thing... Big Grin | :-D

cool. are you an assembley language programmer before ? Poke tongue | ;-P

Re: Add five zéros on the left of int

Guffa16-Feb-09 14:03

Guffa

16-Feb-09 14:03

Then it would probably have been a more hardcore solution:

char[] c = new char[10];
for (int i = 9; i >= 0; number /= 10) c[i--] = (char)('0' + number % 10);
string result = new String(c);

Wink | ;)

Despite everything, the person most likely to be fooling you next is yourself.

Re: Add five zéros on the left of int

Rutvik Dave17-Feb-09 3:50

Rutvik Dave

17-Feb-09 3:50

OK. I give up... Big Grin | :-D

Hey you forgot

asm 
{ 

}

Re: Add five zéros on the left of int

Guffa17-Feb-09 5:21

Guffa

17-Feb-09 5:21

No, that wasn't assembly code. If inline asm was supported, it might look more like this:

string result;
unsafe {
   char* p = stackalloc char[10];
   asm {
      lea esi, number
      mov eax, [si]
      lea edi, p
      add edi, 014
      std
      mov cx, 0a
      .digit
         xor edx, edx
         div dword 0a
         xchg eax, edx
         add ax, 030
         stosw
         xchg eax, edx
      loop digit
   }
   result = new String(c);
}

Despite everything, the person most likely to be fooling you next is yourself.

Re: Add five zéros on the left of int

Eddy Vluggen16-Feb-09 20:39

Eddy Vluggen

16-Feb-09 20:39

Noes, I learned it in "Amos Basic", using GWBasic examples $Shucks | :-\$

It's been over fifteen years, and there are still days that I'm having trouble with even the most basic statement Laugh | :laugh:

I are troll Smile | :)

Re: Add five zéros on the left of int

Rutvik Dave17-Feb-09 3:57

Rutvik Dave

17-Feb-09 3:57

Eddy Vluggen wrote:
It's been over fifteen years

wow long time huh...

Smile | :)

I have started with QBasic.

But I still remember those college days when in exams they ask some silly things like.

*) write a function to swap 2 variables without using 3rd one or references.
*) draw a pascal triangle without using array (recurrsion : damn thing)

Dead | X|

Re: Add five zéros on the left of int

Eddy Vluggen17-Feb-09 4:32

Eddy Vluggen

17-Feb-09 4:32

Things haven't changed much, my roommate is in college and learning C# using the book "Head First C#". It's got some basic examples as to be expected, and they're gonna build two games during class. One arcade-type, another rpg-type.

It looks better when you see the graphics, but is just as much fun as doing a Snakes-game in basic Big Grin | :-D

..and yeah, I do miss those logical puzzles from school sometimes. I don't miss being sent out of class though Suspicious | :suss:

I are troll Smile | :)

Re: Add five zéros on the left of int

alantu16-Feb-09 15:49

alantu

16-Feb-09 15:49

try this:
string.format("{0:d10}",345);

Read string with é, è, à

abbd16-Feb-09 8:30

abbd

16-Feb-09 8:30

Hello,

When i read the string from BDD, like this :

<br />
oleDbConnection1.ConnectionString = oleconnexion; <br />
            this.oleDbDataAdapter1.SelectCommand.CommandText = "SELECT *  FROM CSV2 ";<br />
                        dataSet2.Clear();<br />
                        oleDbDataAdapter1.Fill(this.dataSet2.Tables["CSV2"]).ToString();<br />
                        DataTable dataTable1 = dataSet2.Tables[0];<br />
                        this.oleDbConnection1.Close();<br />
                        <br />
                            <br />
                         String   id_client = dataSet2.Tables["CSV2"].Rows[0]["id_client"].ToString();<br />
 <br />

the caracters é, à , è shows like square, help me to resolve this problem, thank you verry mutch.

Re: Read string with é, è, à

Tony Pottier16-Feb-09 9:24

Tony Pottier

16-Feb-09 9:24

1. Verify that your database has a correct encoding like utf8 (ie: are the data already fked up?)
2. In your connection string, specify the encoding. It's often some kind of optional parameter.

Re: Read string with é, è, à

abbd16-Feb-09 21:15

abbd

16-Feb-09 21:15

In database the caracters are true, thank you verry mutch.

problem whit Combo-Box

E_Gold16-Feb-09 7:32

E_Gold

16-Feb-09 7:32

hi evryone
i have 2 combobox's that fill whit a data
if combo1 is focus and i press [down key] - i whant to focus combo2
(whitout change the selected index place in combo1)

how can i do it ?

thank's for any help

Re: problem whit Combo-Box

Eddy Vluggen16-Feb-09 7:40

Eddy Vluggen

16-Feb-09 7:40

Catch "Keys.Down" in the appropriate eventhandler, and do a Combo2.Focus();

Enjoy Smile | :)

I are troll Smile | :)

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