Question

I need Standard Regular Expression for Employeed ID like

EMP015
015EMP
EMP_015
E_015
EMP-015
EMP.VIS
EMP/056 

Basically it should allow . or _ or - or / in-between alpha-numeric characters

Conditions:

1. First character should not be . or _ or - or /
2. Length of Employee ID should be 50 characters.

Answer 1

Try using this for your regex pattern:

@"^[A-Z\d]{1}[A-Z\d._/\-]{49}$"

Sample code:

Regex oRegex = new Regex(@"^[A-Z\d]{1}[A-Z\d._/\-]{49}$");
oRegex.IsMatch("EMP_01512312312312/31-2312.31231231231322222222222"); // true