CODEWITHSUNDEEP
qtqml
ustulation
ustulation

Reputation: 3760

Accessing runtime-selected model roles in QML

{QML/Qt-5.2, Win7}

The usual way of accessing roles is using model.roleName

    ListModel {
    id: mod
    ListElement { role0: "hello"; role1: "aaa" }
    ListElement { role0: "helloThere"; role1: "bbb" }
    }


//.....
Repeater {
model: mod
delegate: Text {//....
text: model.role0
}
}

If i require that i have a line-edit where i can type in a role to be considered during the runtime then the above way of accessing the roles at runtime fails. But this seems to be equivalent

Text {//...
text: model["role0"] //is this legal (it works btw) instead of model.role0 ?
}

Now it’s basically a string so i can dynamically input the role and the display would change according to the specified role. But this is not documented anywhere, just stumbled upon it. The question is if this (the second method) is a standard way to do it? Otherwise what is the way i can specify the role during the runtime ?

Upvotes: 1

Views: 360

Answers (1)

Kuba hasn't forgotten Monica
Kuba hasn't forgotten Monica

Reputation: 98495

The expression that you write is in javascript, and in javascript model.foo and model["foo"] are functionally equivalent. Don't forget that you have the power of javascript available to you :)

Upvotes: 2

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