Extract a GUID from a string. How can I do it?

Question

I have a string in this format:

"object": "Board-f330c10a-a9eb-4253-b554-43ed95c87242"

and I want to extract guid from it.I was trying like this:

Guid.Parse(followActivity.Object.Split('-').Skip(1).FirstOrDefault());

but it takes only the first part of the guid string. How can I extract whole guid?

Can anybody help.

Use a regex that matches GUIDs, for instance the one here. https://stackoverflow.com/questions/11040707/c-sharp-regex-for-guid — AKX, Aug 31 '18 at 09:39
are you sure, every input should contain `Board-` or something like that before a `GUID` — sujith karivelil, Aug 31 '18 at 09:42
@sujithkarivelil Yup. Every string is like **Board-f330c10a-a9eb-4253-b554-43ed95c87242** — Sajad Ahanger, Aug 31 '18 at 09:46
Your code is saying "split on dashes, then ignore the first item, and give me the next item". You should be putting it back together piece-by-piece. — Captain Kenpachi, Aug 31 '18 at 09:48
Thanks all. All the answers amd comments are helpful. Got the issue solved. — Sajad Ahanger, Aug 31 '18 at 10:23

score 4 · Accepted Answer · answered Aug 31 '18 at 09:46

Try something like this Example , if every input follows the same patter like Board-:

string complexGuid = "Board-f330c10a-a9eb-4253-b554-43ed95c87242";
string extractedGuid = complexGuid.Substring(complexGuid.IndexOf('-') +1 );

Here complexGuid.IndexOf('-') will return the first index of the '-' which is the - after the Board in the given example. we need to skip that also so add a +1 so that .Substring() will give you the expected output for you.

score 2 · Answer 2 · answered Aug 31 '18 at 09:46

2

Try this

 Guid.Parse(string.Join("-",followActivity.Object.Split('-').Skip(1)))

answered Aug 31 '18 at 09:46

mukesh kudi

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score 2 · Answer 3 · answered Aug 31 '18 at 09:49

2

Or just

Guid.Parse(followActivity.Object.Replace("Board-",""));

answered Aug 31 '18 at 09:49

Captain Kenpachi

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score 1 · Answer 4 · edited Aug 31 '18 at 10:30

1

If the format is always the same, you could use string.Split()

Guid.Parse(followActivity.Object.Split(new char[]{'-'}, 2)[1]));

edited Aug 31 '18 at 10:30

sujith karivelil

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answered Aug 31 '18 at 09:44

ikkentim

1,639
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Extract a GUID from a string. How can I do it?

4 Answers4