Can't access ListModel's roles

pillexyz_z

Hi! I'm still a beginner and trying to figure out why I get error "ReferenceError" model is not defined.

The Repeater documentation says: If the model is a model object (such as a ListModel) the delegate can access all model roles as named properties, in the same way that delegates do for view classes like ListView.

And here is my code I'm trying to do that but it doesn't work for some reason. It works if I access it like this: macroItemModel.get(index).macroCode but this sounds more complicated than what the documentation says.

(sorry for the pastebin it marked the post as spam with the code put it in here, between the code tags)
https://pastebin.com/grd7m3hA

(Also there is another problem when I remove an element from ListModel I get 2 more TypeErrors: Cannot read property 'macroName', 'macroCode' of undefined)

SnehaSuresh

This post is deleted!

GrecKo

The issue is that accessing roles in a delegate through context properties is not possible anymore when you define a required property.
If you change the required property int index in property int index: model.index your delegate will work.
That's not the preferred solution however, you should use required properties for everything.

So keep your required index, and make macroName and macroCode required. You can make them required in your delegate even if they are already defined in MacroItem by writing required <propertyName>:

delegate: MacroItem {
    required property int index
    containerWidth: macroListContainer.width/1.5
    required macroName
    required macroCode
    onDeleteButtonClicked: {
        macroItemModel.remove(index, 1);
    }
}

pillexyz_z

@GrecKo Thanks for your answer, now it finally works. ^_^