Set focus on phone number field when validations fails

[Geckoz100]

Hello,

I have a text field set up as a phone number field, with the following in the change event to accept numbers only:

if(xfa.event.newText.match(/[^0-9]/)){
xfa.event.change = "";
}

In the Pattern validation, I have this mask on all tabs (Display, Edit, Validation and Data):

text{'('999')' 999-9999}

I want the user to be able to just enter numbers and have the parentheses and dash added automatically ["(123)-456-7890"].

How do I get the focus to stay on this field when it fails validation? (e.g., insufficient or too many digits).  I have looked into validationState but couldn't figure out how to use it (I'm a noob javascripter).

Thanks for any help.

[jasotastic81 · Accepted solution]

in the exit event of your field:

if (this.rawValue.length !=9) xfa.host.setFocus(this);

[Geckoz100]

That worked, thanks!  The only change I made was to insert "10" instead of "9" for the phone digits.

if (this.rawValue.length != 10) xfa.host.setFocus(this); 

[jasotastic81]

Yeah, I'll learn how to count one day...