how to increment 6digit value one by one

Question

i have a variable say

             a=000000;

My requirement is when i loop this variable from 1 to 100 it will increment one by one ,like

    for loop 1 the value in 'a' will be 000001
    for loop 2 the value in 'a' will be 000002 like that

up to 100 it will be 000100.Any idea?

`a += 1`. Integers don't actually have leading zeroes though, that's a graphical representation, you have to handle that when you use the integer as a string. — Tobberoth, Dec 03 '13 at 09:30
How you have something like `int a=000000`; It will anyway be `int a=0`; — huMpty duMpty, Dec 03 '13 at 09:32
I don't think a developer having almost 2 years of experience can ask a question like this. — Tu Tran, Dec 03 '13 at 09:32
foreach (int x in Enumerable.Range(1, 100)) Console.WriteLine(x.ToString("D6")) — It'sNotALie., Dec 03 '13 at 09:32
@It'sNotALie.: put it as an answer and get an upvote if you want. ;-) — Chris, Dec 03 '13 at 09:33
What you going to do within the loop? Do you need to store it or just print? — huMpty duMpty, Dec 03 '13 at 09:35
Have a look at [C# - increment number and keep zeros in front](http://stackoverflow.com/questions/10935020/c-sharp-increment-number-and-keep-zeros-in-front) — huMpty duMpty, Dec 03 '13 at 09:36

Adil · Accepted Answer · 2013-12-03T09:40:42.027

2

You can use PadLeft to format like that.

int intVariable = 0;
intVariable++; 
string output = intVariable.ToString().PadLeft(6, '0');

A new string that is equivalent to this instance, but right-aligned and padded on the left with as many paddingChar characters as needed to create a length of totalWidth. However, if totalWidth is less than the length of this instance, the method returns a reference to the existing instance. If totalWidth is equal to the length of this instance, the method returns a new string that is identical to this instance, MSDN.

To generate in loop, you can use loop variable.

  for(int i=0; i < 100; i++)    
       output = i.ToString().PadLeft(6, '0');

edited Dec 03 '13 at 09:40

answered Dec 03 '13 at 09:32

Adil

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when intVariable becomes 10,output will be 0000010 right? – ranjenanil Dec 03 '13 at 09:35
Yes, it will be like that. – Adil Dec 03 '13 at 09:36
1

You can use `intVariable.ToString("D6")`. – Jeppe Stig Nielsen Dec 03 '13 at 09:37
I misread your first comment it wont go to 7 digit, it will be 000010 not 0000010 – Adil Dec 03 '13 at 09:39

score 2 · Answer 2 · answered Dec 03 '13 at 09:39

2

Use int's overload of ToString that takes a parameter and pass it the string D6:

foreach (int x in Enumerable.Range(1, 100)) 
    Console.WriteLine(x.ToString("D6"))

answered Dec 03 '13 at 09:39

It'sNotALie.

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score 1 · Answer 3 · answered Dec 03 '13 at 09:39

1

Try something like, this will keep always 6 digits

   for (int i = 1; i < 20; i++)
   {
      Console.WriteLine(String.Format("{0:000000}", i));
   }

answered Dec 03 '13 at 09:39

huMpty duMpty

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`WriteLine` already supports formatting, so use `Console.WriteLine("{0:000000}", i);`. – Jeppe Stig Nielsen Dec 03 '13 at 09:41
1

This is wrong. it only goes to 20. ;-) Just kidding. +1. – Chris Dec 03 '13 at 09:41
@JeppeStigNielsen: Sorry, I didn't get you? It is `Console.WriteLine` – huMpty duMpty Dec 03 '13 at 09:43
I am saying you can remove the `String.Format( . . . )` part. – Jeppe Stig Nielsen Dec 03 '13 at 09:44
1

@JeppeStigNielsen: Oh yes, but seem OP using `asp.net` application. Probably he will not use `Console.WriteLine` – huMpty duMpty Dec 03 '13 at 09:46

how to increment 6digit value one by one

3 Answers3