creating regular expression pattern in c#

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Hi,
I want to create a regular expression to search a pattern. My search pattern is 4 alphanumeric / 5 alphanumeric / 2 alphanumeric. like (AP11/0258A/12).

i am using this

const string Pattern = "^[a-zA-Z0-9][a-zA-Z0-9][a-zA-Z0-9][a-zA-Z0-9]/[a-zA-Z0-9][a-zA-Z0-9][a-zA-Z0-9][a-zA-Z0-9][a-zA-Z0-9]/[a-zA-Z0-9][a-zA-Z0-9]$";

but no match found.

Input string can have space or other symbols also.

Thanks

Posted 13-Jun-14 21:34pm

204.sharma

Updated 1-Jul-14 2:29am

v2

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DamithSL 14-Jun-14 3:56am

what are the symbols? if there symbols are there in the input, is it valid?

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phil.o · Accepted Answer · 2014-06-13T21:47:00

Solution 3

Maybe:

C#

const string EIDPattern = @"^(?<group1>[A-Za-z0-9]{4})(?:[/\s])(?<group2>[A-Za-z0-9]{5})(?:[/\s])(?<group3>[A-Za-z0-9]{2})$"

The

Input string can have space or other symbols also.

is not directly translatable to a valid regular expression statement, though.

You should have a look at Expresso[^].
Cheers.

Posted 13-Jun-14 21:47pm

phil.o

Updated 13-Jun-14 21:48pm

v2

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204.sharma 14-Jun-14 3:59am

Thanks