Formula code for alphanumeric validation

This tip offers simple Formula code to validate and allow a field value to have only alphanumeric characters.

This is simple Formula code to validate and allow a field value to have only alphanumeric characters -- both letters and numbers are mandatory. All you need to do is paste the code in the field's input validation.

CheckA := @If(@Matches( @ThisValue; "+{A-z0-9}" );"yes";"no");
CheckB := @If(@Matches( @ThisValue; "+{A-z}" );"yes";"no");
CheckC := @If(@Matches( @ThisValue; "+{0-9}" );"yes";"no");
Check := @If(CheckA="yes" & CheckB="no" & CheckC="no";@success;@failure);

Do you have comments on this tip? Let us know.

This tip was submitted to the tip exchange by member Vijay Sreegiriraju. Please let others know how useful it is via the rating scale below. Do you have a useful Notes/Domino tip or code to share? Submit it to our bimonthly tip contest and you could win a prize and a spot in our Hall of Fame.

This was first published in October 2005

Dig Deeper on Lotus Notes Domino Formula Language



Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to:




  • iSeries tutorials's tutorials provide in-depth information on the iSeries. Our iSeries tutorials address areas you need to know about...

  • V6R1 upgrade planning checklist

    When upgrading to V6R1, make sure your software will be supported, your programs will function and the correct PTFs have been ...

  • Connecting multiple iSeries systems through DDM

    Working with databases over multiple iSeries systems can be simple when remotely connecting logical partitions with distributed ...