Insert/remove/accessing items on QAbstractListModel

[JohnRS]

Hi everyone,

I need some help related to several operations that I want to do on QAbstractListModel.
Let's suppose that we have a model like this:
QAbstractListModel* myModel; // myModel is an array of structs that fills a QML ListView

The questions:

1. How can I access the structs variables from, let's say, third element of myModel ?
   QVariant qv = myModel->data(myModel->index(3, 0), Qt::DisplayRole); // this is how I access the third element, but how can I read the data from the structure inside "qv" ?

2. How can I insert/remove elements in myModel ?
   For removing elements I used this method:
   myModel->removeRow(0, myModel->index(0, 0));
   but apparently doesn't have any effect.

Can someone tell me what I do wrong?

Thanks a lot.

[SGaist]

Hi,

@JohnRS said in Insert/remove/accessing items on QAbstractListModel:

How can I access the structs variables from, let's say, third element of myModel ?
QVariant qv = myModel->data(myModel->index(3, 0), Qt::DisplayRole); // this is how I access the third element, but how can I read the data from the structure inside "qv" ?

Use custom roles. One for each field you want to expose.

@JohnRS said in Insert/remove/accessing items on QAbstractListModel:

How can I insert/remove elements in myModel ?
For removing elements I used this method:
myModel->removeRow(0, myModel->index(0, 0));
but apparently doesn't have any effect.

You can add a method to your model that accepts an object of the type you store.