How to create a “0000001” type number format in C#?

Question

How do I create a “0000001”-type number format in C#?

How could I generate this type of number format in C#/.NET?

Generate it WHERE? Ever heard of string.Format - look up the format strings, there is one for formatting numbers that does put leading zeroes as needed. — TomTom, Feb 23 '14 at 07:14
Either change `0000003` example or add clarification, as you are confusing fellow stackoverflowers with what you want. ( I think you want binary padded to 8 digits ) — vittore, Feb 23 '14 at 07:19
possible duplicate of [How can I format a number into a string with leading zeros?](http://stackoverflow.com/questions/5418324/how-can-i-format-a-number-into-a-string-with-leading-zeros) — myermian, Feb 23 '14 at 07:22

score 3 · Answer 1 · edited Mar 27 '15 at 16:37

3

You can use the Convert.ToString method and pass it to the base parameter. Like 2, 8, 16, if that's what you mean.

int number = 124;
string binary = Convert.ToString(number, 2); // Output: 1111100

edited Mar 27 '15 at 16:37

Peter Mortensen

answered Feb 23 '14 at 07:15

Selman Genç

score 2 · Answer 2 · answered Feb 23 '14 at 07:15

Numbers/values don't have a format unless you decide to get a string representation of the value itself.

To get string representation of int value you can use ToString with format specified:

var value = 0;
var valueStringRepresentation = value.ToString("0000000");

"0" in ToString() call is a zero placeholder and means:

Replaces the zero with the corresponding digit if one is present; otherwise, zero appears in the result string.

from Custom Numeric Format Strings

score 2 · Accepted Answer · answered Feb 23 '14 at 07:15

2

String.Format(CultureInfo.InvariantCulture, "{0:0000000}", number);

answered Feb 23 '14 at 07:15

myermian

score 2 · Answer 4 · answered Feb 23 '14 at 07:16

2

int i = 1;
Console.WriteLine(i.ToString("D8"));

answered Feb 23 '14 at 07:16

w.b

score -1 · Answer 5 · edited Mar 27 '15 at 16:34

-1

You could use PadLeft in C#, like below:

string s = "1"；
Console.WriteLine(s.PadLeft(7, '0'));

Please visit String.PadLeft Method (MSDN) for details.

edited Mar 27 '15 at 16:34

Peter Mortensen

answered Feb 23 '14 at 07:13

linpingta

5 Answers5