Dynamic Property for stylesheet

baechlju

I need to change the color of a button dynamically. I tried this based on a property "orderstatus".
Another approach didn't work for me too: https://stackoverflow.com/questions/21685414/qt5-setting-background-color-to-qpushbutton-and-qcheckbox.
But i would prefer a way, which allows me to set the specific color in the stylesheet.

My code for the property approach:

//Code in UIOrder.cpp
void UIOrder::statChanged(OrderStatus::Enum stat)
{
  m_ui.btnStatus->setProperty("orderstatus", stat);
  int status = m_ui.btnStatus->property("orderstatus").toInt();
  m_ui.btnStatus->repaint();
}

/*Code in stylsheet*/
*[orderstatus="1"]{	background: rgb(   0,   0, 255, 255); }
*[orderstatus="2"]{	background: rgb(   0, 255,   0, 255); }
/*...*/

int status has the right value after executing, so i guess, the property was set sucessfully.
But the button doesn't change the color and keeps the first set color (first called when OrderStatus::Enum stat == Sent(1) )
The button stays blue, but it should be green.

Thanks for your help : )

mrjj

Hi and welcome to the forums

Properties need some extra code when used with stylesheets:
Please see
https://wiki.qt.io/Dynamic_Properties_and_Stylesheets

Try the last part
myLineEdit->setProperty("urgent", true);
myLineEdit->style()->unpolish(myLineEdit);
myLineEdit->style()->polish(myLineEdit);

m_ui.btnStatus as myLineEdit. ofc :)

baechlju

@mrjj Thank you very much. I've tried to solve this problem for hours, but the solution was so easy.