select a string that contains only numbers with or without comma in Regex c#

Question

I have below inputs. I need to select string only numbers with or without comma using Regular expression

The regex will select only 1, 5 and 6. It will not select number with alphabets.

Can anyone help this...

I tried [0-9]+(\,[0-9]+)* but its not working.

Just add anchors - `@"^[0-9]+(\,[0-9]+)*$"` or `@"\A[0-9]+(\,[0-9]+)*\z"` — Wiktor Stribiżew, Sep 07 '16 at 08:50

SamWhan · Answer 1 · 2016-09-07T09:00:52.330

1

What you're after seems to be

^(?:[\d]+,?)+$

That'll match digits, optionally followed by a comma, and then repeated any number of times.

edited Sep 07 '16 at 09:00

answered Sep 07 '16 at 08:49

SamWhan

sorry ClasG. it not correct. It select all the 6 – ahtina b Sep 07 '16 at 08:50
Sorry, the regex in the answer wasn't correct. The one in the link was. Corrected it. – SamWhan Sep 07 '16 at 08:52
Don't you find it a bit overcomplicated? – Thomas Ayoub Sep 07 '16 at 08:52
1

@ThomasAyoub It could simply be `^[\d,]*$`, but I get a feeling from the examples that for example repeating commas (1,,,2,,77) shouldn't be allowed. – SamWhan Sep 07 '16 at 08:54

1 Answers1