[SOLVED] QLineEdit Should accept only integers and " and / characters??

[Macro]

Hi.....

I have a QLineEdit & Am using it for a Measurement Conversion Application... In that QLineEdit i have to use only the Integers values. so i used the QDoubleValidator.

@q_LineEdit->setValidator(new QDoubleValidator(this));@

Now i want the QLineEdit to accept only " and / characters to it, as it is required for the conversion application. how can i make my QLineEdit to accept it while using a QDoubleValidator... Pls give ur suggestions....

Thanks & Regards

[sierdzio]

You need to use "QRegExpValidator":http://qt-project.org/doc/qt-4.8/qregexpvalidator.html.

[Macro]

Thanks for your suggestion sierdzio.

If i use a QRegExpValidator, it will acept all the characters. (including alphabets too). I don't want my QLineEdit to accept the alphabets or any other characters except this " and / in it.

Thanks and Regards.

[sierdzio]

@
QRegExpValidator("("|/)");
// or
QRegExpValidator("("|/){1}");
@

[Macro]

Already i had tried in this way
@QRegExpValidator("("|/)"); @

and i failed because i can only enter either one of the characters in my line edit, also i want to enter other integer values (0-9 as double values).

Note: I want my Line Edit to behave something like this (eg. 70"1/2).

[sierdzio]

OK, you did not specify that in your initial post. Just follow the tutorial on "QRegExp":http://qt-project.org/doc/qt-4.8/qregexp.html, it's quite well written.

Don't expect regExps to be easy, though ;) Also, in Qt5, you can use QRegularExpression.

[Macro]

Yup... I know that QRegExp is not quite easy. anyways thanks for your suggestions.. :-)

Thanks & Regards

[VRonin]

Just use:
@
QRegExpValidator("["/\d]");
@

[Macro]

Yup... I got it.... Thanks for your suggestion.... :-)