How to compare two string with a number part of this string C# ?

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I have a list of string that contains invoice names,

FACTURE 147-2016 OCP CAMERAS
FACTURE 148-2016 OCP 20 DETECTEURS
FACTURE 150-2016 VIVOENERGY ALTAIR 5X
FACTURE 158-2017 VIVO ENERGY MOHAMMEDIA

I want to compare with the names in the list and the names in an Excel file.

the excel file just contain form

FACTURE 147-2016 or FACTURE150-2016

how cant i compare just with the code and year FACTURE 147-2016

What I have tried:

i try to use ( string.Split , string.contains ) but Sometimes there is space between invoice and code and sometimes not.

FACTURE147-2016
FACTURE 147-2016

Posted 5-Jul-17 23:55pm

Moumni Mohamed

Updated 6-Jul-17 0:22am

v2

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Ralf Meier · Answer 1 · 2017-07-06T00:11:00

Solution 1

If your string could be "FACTURE147-2016" and also "FACTURE 147-2016" (with a space in it) I would use String.Contains in 2 steps :
1st : compare if the string contains "FACTURE"
2nd : if Yes the compare if it also contains "147-2016" ...

Posted 6-Jul-17 0:11am

Ralf Meier

OriginalGriff · Answer 2 · 2017-07-06T00:22:00

Solution 2

Try a regex:

(?<=FACTURE\s*\d{3}\-\d{4}).*

That should capture just the text part after the invoice code.

Or, if you want the invoice code / year stuff separately

(?<=FACTURE\s*)(?<prefix>\d{3})\-(?<year>\d{4})(?<FreeText>.*)$

Will split it into groups.

Posted 6-Jul-17 0:22am

OriginalGriff