How to change color border QComboBox only?

vinh

I have QComboBox

, I change color it by code

combobox->setStyleSheet( "border: 1px solid red;" );

button down-row is change and height small too
how to change only color?

J.Hilk

@vinh not surprising, you have with that overwritten all default stylesheet settings and only specified an universal border

take a look at this extensive stylesheet example, what else you can modify in combination with what selector

vinh

@J-Hilk tks, I'm try

combobox->setStyleSheet( "QComboBox {border: 1px solid red;}" );

but it set all, what is correct syntax?

SGaist

Hi,

When you use style sheets you have to do the complete styling. Style sheets ignores the original style used to draw the controls.

vinh

@SGaist So is there any other way? full styling is unnecessary for only border color.

SGaist

Depending on what you want to use that border color for you could consider using a QRubberBand.

mrjj

Hi
You could also put the QComboBox in a QFrame+layout.
(set all margins on layout to zero)
alt text

vinh

@mrjj yes, I have formLayout and I'm try set margin 0px but it not work.

mrjj

@vinh
Ok I used a horizontal layout.
and sat all these to zero
alt text

vinh

@mrjj thank you very much, but QComboBox is change size and icon down-row, css on Qt not support custom only property :( I think

mrjj

@vinh
Hi
Make sure to set the style sheet on the QFrame (ONLY)
and change it so it says
"QFrame {border: 1px solid red;}"

So you don't affect the Combobox inside. but only the QFrame.

So no stylesheet on Combobox but only on QFrame.