Q:

Styling only promoted widgets using QT Creator

I'm new to Qt and have been designing forms using Qt Creator.  I've noticed that I can apply styles for specific widgets in the form's stylesheet, and it will style every widget on the form.  For example "QPushButton{color: red;}" will make all the QPushButtons on the form have red text.
Is there a way to only apply styles to certain groups of widgets?  For example, if I promote a QPushButton and call it MyButton, how can I set styles only for MyButtons.  I would expect to be able to do something like "MyButton{color: green;}" but that doesn't seem to work.
Is there a better way to do what I'm trying to do (preferably using Qt Creator)?  I can't seem to find an example of this anywhere, but maybe it's because I'm not using the correct terminology.
Thanks,
Mark

A:

There are a lot of options for specifying selectors in style sheets. They are documented here.
One that I use (that is hinted to in the official style sheet reference document) is
|=
QPushButton[objectName|="somePrefix_"]

I use this to select items that have the same object name prefix. You could of course achieve a similar thing by applying a stylesheet to a panel containing the buttons you want to style differently but this can get tricky.

