How to use DoubleValidator and disable groupSeparator

[themts]

Hey guys,

I have a problem with the doubleValidator.
I don't want to allow thousand-separators when I use a TextInput to enter float values.
When I assign a doubleValidator to my textInput it uses Qt.locale() to format values.
Most locales have thousand-separators which I don't want.
How can I disable groupSeparation ?

Thanks
mts