在QML中动态创建ListModel [英] Dynamically create ListModel in QML

问题描述

当我需要在运行时创建任何QML组件时，我可以使用该指南：
http://qt-project.org/doc/qt-5/qtqml-javascript-dynamicobjectcreation.html

When I need to create any QML component in runtime, I can use that guide: http://qt-project.org/doc/qt-5/qtqml-javascript-dynamicobjectcreation.html

即只需调用Qt.createComponent和component.createObject

i.e. just call Qt.createComponent and component.createObject

但是我找不到如何在运行时创建ListModel？用qml，而不是用c ++。

But I couldn't find how to create ListModel at runtime? with qml, not in c++.

你可以问，为什么我需要它。所以，我有一个嵌套的ListModel：有外部模型，它委托包含内部模型。因此，当我调用outer_model.append（{}）时，我必须为内部模型传递新创建的ListModel。我不能在外部委托中使用静态定义的内部模型，因为我无法在运行时访问此类模型。顺便说一下，它可以以某种方式访问​​吗？

You can ask, why I need it. So, I have a nested ListModel: there is outer model, which delegates contained inner models. So when I'm calling outer_model.append({}), I must pass newly created ListModel for inner model. I cannot use statically defined inner model in outer delegate, because I cannot access such model in runtime. By the way, can it be accessed somehow?

P.S。也许在javascript中尝试管理模型是完全错误的想法？

P.S. Maybe it's completely wrong idea to try managing models in javascript?

推荐答案

试试这个：

Component {
    id: someComponent
    ListModel {
    }
}

function createModel(parent) {
    var newModel = someComponent.createObject(parent);
    return newModel;
}

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