[Interest] Uncheck Button in QML ButtonGroup

[Jérôme Godbout]

Here's what I did:

function unselectAllButton()
{
  [idButton1, idButton2, ...].forEach(function(v){ v.checked = false; });
  group.checkedButton = null;
}

I didn't test it with ButtonGroup, but only with QtQuick Controls 1
and ExclusiveGroup work this way (change the group.checkButton for
group.current), so I guess it should work too.

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Jerome Godbout
Software Developer
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On Wed, Aug 16, 2017 at 7:46 AM, Bullinger, Julius <
julius.bullinger at intel.com> wrote:

> Hi,
>
>
>
> given the ButtonGroup example
> <https://doc.qt.io/qt-5/qml-qtquick-controls2-buttongroup.html> from the
> documentation:
>
>
>
>   ButtonGroup { id: *group* }
>
>
>
>   RadioButton {
>
>       checked: true
>
>       text: *qsTr*("Option A")
>
>       ButtonGroup.group: *group*
>
>   }
>
>
>
>   RadioButton {
>
>       text: *qsTr*("Option B")
>
>       ButtonGroup.group: *group*
>
>   }
>
>
>
> When the application is started, all buttons are unchecked (*group*
> .checkedButton  is null). As soon as a button is clicked, the
> checkedButton is set, and selection can only be changed between buttons.
>
>
>
> Is there any way to uncheck a button, when it’s clicked in a checked
> state? It’s supposed to work by setting *group*.checkedButton  to null
> again, but this doesn’t work when doing it on a Button signal. I tried
> several approaches like these:
>
>
>
>   Connections {
>
>     target: *buttonGroup*.checkedButton
>
>     onClicked: if(*buttonGroup*.checkedButton.checked) {
>
>       *buttonGroup*.checkedButton.toggle()
>
>       // or setting checked to true,
>
>       // or moving the connection to each Button,
>
>      // or using onPressed/onReleased,
>
>      // or setting group.checkedButton to null
>
>      // doesn’t work either
>
>     }
>
>   }
>
>
>
> But for all of these, the button is toggled checked > unchecked > checked
> immediately when it’s clicked.
>
>
>
> It does work when omitting the ButtonGroup, but I need mutually-exclusive
> selection.
>
>
>
> Thanks and best regards,
>
> Julius
>
> Intel Deutschland GmbH
> Registered Address: Am Campeon 10-12, 85579 Neubiberg, Germany
> Tel: +49 89 99 8853-0, www.intel.de
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