QML ListView: model like Array of Arrays. How?

bogong

Hello all!
Is there any way to pass array of arrays to QML ListView and how to access data from this array-of-arrays?
Something like this:

property var pData: [
	["Field_0-01","Field_0-02","Field_0-03","Field_0-04","Field_0-05"],
	["Field_1-01","Field_1-02","Field_1-03","Field_1-04","Field_1-05"],
	["Field_2-01","Field_2-02","Field_2-03","Field_1-04","Field_2-05"],
	["Field_3-01","Field_3-02","Field_3-03","Field_1-04","Field_3-05"],
	["Field_4-01","Field_4-02","Field_4-03","Field_1-04","Field_4-05"],
	["Field_5-01","Field_5-02","Field_5-03","Field_1-04","Field_5-05"],
	["Field_6-01","Field_6-02","Field_6-03","Field_1-04","Field_6-05"],
	["Field_7-01","Field_7-02","Field_7-03","Field_1-04","Field_7-05"]
];

...

ListView {

	...
	model: pData;
	...
}

For me works only direct access to pData by currentIndex of ListView:

oApplicationWindow.pData[index][0]

But is there way to access it through "model"?

sierdzio

This might work:

modelData[0]

bogong

@sierdzio Thx. It works.

bogong

@sierdzio Do you know which method should be implemented for the same functionality if I am developing my own/custom data model based on QAbstractListModel?

sierdzio

Declare roles by reimplementing roleNames(), then, in data() use these roles to return your data. In QML, use the names specified by roleNames() to access the data.

So, for a very short example (pseudocode, sorry I don't have time to check all params etc.):

QHash<> roleNames() {
  return { Qt::UserRole + 1, "myRole" };
}

QVariant data() {
  if (role == Qt::UserRole+1) {
    return QVariantList{ "A", "B", "C" };
  }
}

/// QML:
console.log(myRole[0] // Will print "A")

bogong

@sierdzio Thx. I've got roleNames missed. It's mean "modelData" just a role name. I though it's Qt-system value. Briefly all of it looks like model within only one role where stored QVariantList that is transforming into JS-Array in QML.