QRegExpValidator exact number of characters

[republicca]

Hello,
I'm implementing a series of QLineEdits which I have to validate. In one case, I only want to permit exactly 8 characters no more no les. Right now I have this:

@
lineEdit->setValidator(new QRegExpValidator(QRegExp("([a-zA-Z0-9]){8}"), this));
@

But it also allowds expressions of less than 8. Any suggestions?
Thank you!!

[sierdzio]

How do you intend to put the characters into the line edif when the validator would block input of less than 8 chars? I think your current solution is fine. You just need to check it later for correctnes (for example, when edit is finished, or user clicks some button).

[republicca]

You are totally right. Thank you!