Thank you Mike, My answer is "what it last was before fooObject went null", and I was use it in my project.
That's conceptually not a binding. A binding is something that updates whenever any of its depedencies updates. It's value is calculated from its dependencies. In your case, however, as soon as the null appears, the value of the binding is not determined by the dependencies anymore. Rather it is determined by the _previous_, now lost, value of fooObject.
best regards, Ulf -- Development mailing list Development@qt-project.org https://lists.qt-project.org/listinfo/development
