How to remove two characters and replace from a string in the middle in c#

Question

I have a string like this 25/05/2016 now I want to get a string like this 25/05/16 and like this 25-05-2016 how can I do this in c#.

Is the source string *always* in this format DD/MM/YYYY? If so you can convert the source into a `DateTime` and then format it into any representation you like. — Quality Catalyst, Apr 21 '16 at 05:16

Nitin · Answer 1 · 2016-04-21T05:50:25.910

16

Instead of string manipulation, parse the Date properly:

var date = DateTime.Parse("25/05/2016");

var date1 = date.ToString("dd/MM/yy");   <-- 25/05/16
var date2 = date.ToString("dd-MM-yyyy"); <-- 25-05-2016

edited Apr 21 '16 at 05:50

answered Apr 21 '16 at 05:18

Nitin

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I got a small problem here `String was not recognized as a valid DateTime.` in first line – bill Apr 21 '16 at 06:21
@bill - You need to make sure that you're using the right globalization culture for parsing. – Enigmativity Apr 21 '16 at 06:23
k, thanx by the way and found the answer – bill Apr 21 '16 at 06:26

score 0 · Answer 2 · answered Apr 21 '16 at 05:56

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Nitin's answer is the best for your problem.

But if it were not an date you could convert the String to an byte array, modify the characters you need to and then convert it back to string.

answered Apr 21 '16 at 05:56

Chakratos

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score 0 · Accepted Answer · answered Apr 21 '16 at 06:22

You could always just use string manipulation:

var source = "25/05/2016";
var result1 = String.Join("/", source.Split('/').Select(x => x.Substring(x.Length - 2, 2)));
var result2 = source.Replace("/", "-");

These give the correct results:

25/05/16
25-05-2016

score 0 · Answer 4 · edited May 23 '17 at 11:44

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this is what I did

 string s = "25/05/2016";

 var date = DateTime.ParseExact(s, "dd/MM/yyyy",null);
 var date1 = date.ToString("dd/MM/yy");
 var date2 = date.ToString("dd-MM-yyyy");

helped log @Nitin's answer and this stackoverflow questiong

edited May 23 '17 at 11:44

Community

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answered Apr 21 '16 at 06:26

bill

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How to remove two characters and replace from a string in the middle in c#

4 Answers4