How to remove the blue background from the table item when selected?

Question

I have a QTableWidget and I need all items in the table to have the same background color. The problem is that when an item is selected, it gets the background blue.

I tried the following code on stylesheet, but it didn’t work:

QTableWidget {
    selection-background-color: transparent;
}

My question is: how can I remove this blue background when the item is selected using the stylesheet in Pyqt5?

Answer 1

This is QSS (Qt Style Sheets, a style loosely similar to CSS), to style you can (should) refer to the official Qt documentation (and not your "Wrappers"), in the case of QSS styles:

• https://doc.qt.io/qt-5/stylesheet-reference.html

In your specific case you want to style the selected items, then you have to use the pseudo-States to get the item in focus using :focus and to get the items (or other sub-controls) you must use the list QSS of sub-controls, in which case I believe to be the ::item

QTableWiget::item:focus {
    selection-background-color: transparent;
}

In addition you can experience the paintEvent, for many things ends up being even simpler than using QSS, but goes from case to case.

The only situations I couldn’t customize something with QSS was about elements within Qwebview (Qtwebkit), where I had to use QProxyStyle, but that’s because they were elements of which I had no control generated from the HTML rendering engine (Webkit).