How to disable Second QComboBox by clicking on the first QComboBox?

[HeerokNewbie]

I have two ComboBox. I want to disable second ComboBox when i click (Mouse Click) on first comboBox and same operation for other combobox. So is it possible? If yes so how ? Please check the images for better explanation.

[SGaist]

Hi,

What is the goal of that behaviour ?

[posktomten]

Hi!

connect(ui->comboOne, QOverload<int>::of(&QComboBox::activated),
   [ = ]() {
       ui->comboTwo->setDisabled(true);
   });
   connect(ui->comboTwo, QOverload<int>::of(&QComboBox::activated),
   [ = ]() {
       ui->comboOne->setDisabled(true);
   });

There may be a need for a way to reenable them again...

[HeerokNewbie]

@SGaist I don't understand What is "goal of the behaviour" ? 😥
I have already given as much information as I know.
I want the second one combobox to be disabled automatically when I click on the first one combobox. Combobox does not have (isfocus()) function.

[Pl45m4]

@HeerokNewbie

@SGaist asked WHY you want to do that...
This is very weird UX design... maybe there are other ways.
What do you what to achieve in total?

[HeerokNewbie]

@Pl45m4 @SGaist I am making a software. In which there are two comboboxes and one pushbutton. And each combobox stores different file names of the user. So I want the function to first check which combobox is active whenever I click on pushbutton. And for this I have to disable one of the combobox first. and access the items of whichever combobox is active. The combobox also doesn't have isFocused() function so that I can check which combobox is active. Please tell me which function and class I have to use that whenever the user clicks on one of the comboboxes, that combobox becomes active and the other disabled.

[JonB]

@HeerokNewbie said in How to disable Second QComboBox by clicking on the first QComboBox?:

there are two comboboxes and one pushbutton
So I want the function to first check which combobox is active whenever I click on pushbutton.

If you wait for a click on a QPushButton (not shown in your picture), how will any of the comboboxes have focus at that time --- won't focus move to the pushbutton?

Meanwhile did you try @posktomten's code above? Did that do what you want?

[HeerokNewbie]

@JonB Yes ! and my problem is solved thank you @posktomten