regular expression string starts with a letter in mvc

Question

i am trying to validate if string starts with letter k, followed by anything

Expected output :

khtjk
k1234
kq12g

i followed this and this, but it doesnt allow anything after k

this is what i tried :

[RegularExpression("^k", ErrorMessage = "Sorry, enter correct bill no")]
public string StoreBillNo { get; set; }

any help would be great.

@Avinash Raj, thank you that works fine, but to check both capital and small k, post as answer if required — Shaiju T, Mar 12 '15 at 09:28

score 3 · Accepted Answer · edited Mar 12 '15 at 09:42

3

You have to use this regex for capital and small case:

^[kK].*

or use ignore case :

/^k.*/i

OR

"(?i)^k.*"

edited Mar 12 '15 at 09:42

Avinash Raj

answered Mar 12 '15 at 09:32

Ehsan Sajjad

thank you works great, stackoveflow, wants me to wait for 2 minutes to accept your answer, just waiting, 33 seconds more – Shaiju T Mar 12 '15 at 09:36
oh you copied my answer. For case-insesitivity, you could use `(?i)` modifier at the start also. – Avinash Raj Mar 12 '15 at 09:38
@AvinashRaj it is the simplest regex that OP needed so there's no need to copy but yes you put it as comment so you think that i copied..:) – Ehsan Sajjad Mar 12 '15 at 09:40
@EhsanSajjad no probs :), asked just for fun :-) – Avinash Raj Mar 12 '15 at 09:41
@AvinashRaj FYI just telling you that i also got interetsed to learn regex so i strated to look in regex tag questions ..:) – Ehsan Sajjad Mar 12 '15 at 09:42
keep up the good work.. Try to post regex answers on very first. Because there are many regex gurus here. – Avinash Raj Mar 12 '15 at 09:43
hi, both , for ignore case i tried these three, `/^k.*/i` and `/^k.*/?i` and this `(?i)^k.*`, but doesn't work – Shaiju T Mar 12 '15 at 09:45
1

@stom first one is fine as it is just one letter so you can afford to add captial and small both – Ehsan Sajjad Mar 12 '15 at 09:53
yes first one works fine, it was simple, i tried, but failed, but now with your help i could learn and do, thanking both of you for guiding thus far – Shaiju T Mar 12 '15 at 09:57

1 Answers1