Padding with a prefix characters to always have a 12 character string

Question

I'm working with numbers stored in a string in C#.

I have some number such as 22408061. I would like to add dynamic 0 characters to have 12 characters giving 000022408061.

As another example, given 12322408061, it needs to be 012322408061.

Possible duplicate of [everything](https://www.google.co.uk/search?q=c%23+pad+with+zeros). (Note to self: get 100+k reputation by answering obvious duplicate questions.) — Rawling, Mar 14 '14 at 14:45
Please consider that the asker propably did not know about the term "padding" to find the correct answer. At least for me as non-native speaker this wasn't clear when I didn't know yet about padding. — Marwie, Mar 14 '14 at 14:49
[Extra zeroes](https://www.google.co.uk/search?q=c%23+extra+zeros)? — Rawling, Mar 14 '14 at 14:51
Do you have number to begin with or is it a string containing number ? — Habib, Mar 14 '14 at 15:06

score 6 · Accepted Answer · answered Mar 14 '14 at 14:44

6

You are looking for PadLeft method.

var str = "22408061".PadLeft(12, '0');

answered Mar 14 '14 at 14:44

Selman Genç

score 2 · Answer 2 · answered Mar 14 '14 at 14:45

2

This is a string in c#.

You can use PadLeft:

string text = "22408061";
text = text.PadLeft(12, '0'); // 000022408061

answered Mar 14 '14 at 14:45

Tim Schmelter

score 1 · Answer 3 · answered Mar 14 '14 at 14:46

1

Console.WriteLine(str.PadLeft(12, pad));

answered Mar 14 '14 at 14:46

Stachu

score 0 · Answer 4 · answered Mar 14 '14 at 14:48

0

Logic is :

answered Mar 14 '14 at 14:48

Aditi

4 Answers4