QButtonGroup difficulty

[qAlexKo]

Hi, All!
Please help me with QButtonGroup.

Suppose on my Qtcreator form I have (for instance) 50 radiobuttons united in one QButtonGroup
When I quit my app I memories the active radiobutton index as an integer value in an ini file.

When I ran my app again I read the saved index value for an ini file, and I wish to restore QButtonGroup status as it was before quitting.

But how on earth I can do it?

[JonB]

@qAlexKo
By "active" radiobutton do you mean the one radiobutton which is selected in a group of 50 exclusives?

checkedId() returns the id of the selected button. QButtonGroup::button(int id) returns the button with that id, to refind it at a later date. And probably QAbstractButton::click() can be used to click that button to reselect it when you restore, or maybe it's setChecked(true).

https://gist.github.com/mistic100/dcbffbd9e9c15271dd14 seems to set the checked button. It does it by iterating every button for its id, I think QButtonGroup::button(int id) can be used to save you having to find it.

[qAlexKo]

@JonB said in QButtonGroup difficulty:

https://gist.github.com/mistic100/dcbffbd9e9c15271dd14 seems to set the checked button. It does it by iterating every button f

OK it is a way out, thanx, although for me it is very strange that QGroupButton offers Checkedid() function to get the active button ID, and it can't set up the active button by a known ID. ;-)

[JonB]

@qAlexKo said in QButtonGroup difficulty:

it can't set up the active button by a known ID

buttonGroup->button(someId)->setChecked(true);

(plus error checking).

[Pl45m4]

@JonB said in QButtonGroup difficulty:

buttonGroup(someId)->setChecked(true);

btnGrp->button(someId)->setChecked(true);

;-)

[JonB]

@Pl45m4 That was part of the "plus error checking" ;-) Corrected, thanks.

[qAlexKo]

@Pl45m4 said in QButtonGroup difficulty:

btnGrp->button(someId)->setChecked(true);

Yeah! Nice!