[Development] How to skip write property in qml's property binding?

JiDe Zhang zccrs at live.com
Wed Aug 7 10:37:58 CEST 2024


Thank you Mike, My answer is "what it last was before fooObject went null", and I was use it in my project.

Relatively speaking, "text: fooObject?.title ?? text" is the easiest way to understand so far.
________________________________
From: Development <development-bounces at qt-project.org> on behalf of JiDe Zhang <zccrs at live.com>
Sent: Wednesday, August 7, 2024 16:26
To: development at qt-project.org <development at qt-project.org>; Ulf Hermann <ulf.hermann at qt.io>
Subject: Re: [Development] How to skip write property in qml's property binding?

I can't add the RESET attribute to the property, because that properties isn't defined in my project.

Also, I don't want this attribute to be reset. I want it to retain its current value, it has lost its binding state only.
________________________________
From: Development <development-bounces at qt-project.org> on behalf of Ulf Hermann via Development <development at qt-project.org>
Sent: Monday, August 5, 2024 18:42
To: development at qt-project.org <development at qt-project.org>
Subject: Re: [Development] How to skip write property in qml's property binding?

Hi,

you should also be able to add a RESET attribute to the property. It is
conveniently triggered when assigning undefined to the property and
resets it to the default value. This may be the cleanest way to deal
with it.

best regards,
Ulf
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