regular expression in VB.net

Question

0.00/5 (No votes)

See more:

i wish to check for this format similar to this MH-9940
how do i customize regular expression to check if first 2-3 letters are capital from a-z then there should be hyphen followed by four digits from 0-9

link to good explanation about regular expression will also be helpful

here is by current code but its lacking what i want

VB

If Not Regex.IsMatch(TextBox2.Text, "^[MH-]") Then
                MsgBox("Enter proper format!!!" & vbCrLf & "Invalid Bus Number ")
                Exit Sub

Posted 5-May-13 9:43am

Polarfuze

Add a Solution

Comments

Zoltán Zörgő 8-May-13 4:23am

What was the problem with my solution so you undid the acceptance? I have answered to your question exactly as you posed it. Maybe you need to refine your question to get more accurate result.

Polarfuze 15-May-13 13:16pm

i am sorry your solution is working fine
there must have been problem will i was typing before

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

**Zoltán Zörgő** · Accepted Answer · 2013-05-05T10:29:00

Solution 2

Try this: ^[A-Z]{2,3}-\d{4}$
For testing an learning purposes I suggest you download Regex Coach[^].

Posted 5-May-13 10:29am

Zoltán Zörgő

Comments

Maciej Los 5-May-13 16:49pm

Looks very good!
+5!

Polarfuze 15-May-13 13:24pm

ur solution is working but its accepting more than 4 digits also and looks complicated

Zoltán Zörgő 15-May-13 16:17pm

I don't understand what you mean. Please explain: this is just a note, or do you have any further problem in this topic?

Polarfuze 15-May-13 19:22pm

your solution works fine ,my problem solved...thank you
i was talking about maciej los solution

Maciej Los · Accepted Answer · 2013-05-05T10:47:00

See this pattern:

VB

^*([A-Z]{2,3}\-[0-9]{4}).*

Tested on Rad Software Regex Designer[^] and this set of records:

MH-9940
NH-1940
AGV-9Az0
FG-5940
MZ-92X0
AHV-9930

with IgnorePatternWhiteSpace and Mulitline set to TRUE.

Returns:

MH-9940
NH-1940
FG-5940
AHV-9930

Is that what you're looking for?

Many useful information you'll find here: http://www.regular-expressions.info/reference.html[^]