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  1. Qt
  2. QTBUG-21558

Allow creating two way bindings in QML

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      Currently, there is no way to create two way cleanly bindings in QML.

      ​

      Use case: You have a property in C++ and this property is exposed as some UI text input in QML. Changes in C++ need to get reflected in the QML and vice-versa. Currently, one can do:

      TextInput {
    id: root
    text: runtime.cppProperty

<p></p>

    Binding {
        target: runtime
        property: "cppProperty"
        value: root.text
    }
}

      ​

      The problem I have with above is that it's not 'clear' that it's two-way binding. It would clearer if we either had a 'twoWay' property in Binding element to start with. OR we create a new Alias element (which is same Binding except it's two way).

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            ulherman Ulf Hermann
            girish Girish Ramakrishnan
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              Created:
              Updated:
              Resolved:

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