Checking the correctnes of a string

[tomaz (Tomaz Seserko)]

Hello, I want to Check if the selected string is build as follows.
a) B must be first character of a sting!
b) char B must be followed with exactly 7 numbers, and nothing more.

Thx for help.

[ppr (Peter Preuss)]

System.Text.RegularExpressions.Regex.IsMatch(“B1234567”, “\bB\d{7}\b”)

[Gokul001 (Gokul Balaji)]

Hi @tomaz

How about this expression?

System.Text.RegularExpressions.Regex.IsMatch(Inputstring,"B\d{7}")

Output will be Boolean format

Regards
Gokul

[ppr (Peter Preuss)]

Just have a look on the different tests:

[ppr (Peter Preuss)]

@tomaz

@Gokul001

System.Text.RegularExpressions.Regex.IsMatch(Inputstring,"B\d{7}")

keep in mind:

eight following digits will result to true

Starting with A will result to true

vs.

@tomaz

Hello, I want to Check if the selected string is build as follows.
a) B must be first character of a sting!
b) char B must be followed with exactly 7 numbers, and nothing more.

[tomaz (Tomaz Seserko)]

Thank you.