[PyQt] Properties in PyQt5

[Vincent Vande Vyvre]

Le 24/09/2014 06:03, Glenn Ramsey a écrit :
> Hi,
>
> I have a dialog that has been created in Qt Designer and I would like to
> be able to set a red border on a QLineEdit based on its contents (or lack thereof).
>
> Below is what I have tried, based on the PyQt4 version in Mark Summerfield's
> book "Rapid GUI programming with Python and Qt", but it doesn't work.
>
> What have I done wrong here?
>
> Glenn
>
> ui = Ui_MyDialog()
> ui.setupUi(self)
>
> ...
>
> invalidStyle = """
> QLineEdit[invalid="true"] {
>      border: 2px solid red;
> }
> """

true or True ?
>
> ui.myLineEdit.setStyleSheet(invalidStyle)
>
> print ui.myLineEdit.property("invalid")
> # prints None
>
> ui.myLineEdit.setProperty("invalid", QVariant(True))
>
> print ui.myLineEdit.property("invalid")
> # prints True
>
> # expected my QLineEdit to have a red border now, but it doesn't change its
> appearance.
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Vincent