[SOLVED]Returning a QList<QHash<QString, QString> > to Qml ???
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I have a Q_INVOKABLE method that returns a QList<QHash<QString, QString> > when called from Qml, however when I run the code it throws "Error: Unknown method return type: QList<QHash<QString,QString> >", I'm assuming this is because Qml doesn't have support for QHash? Because I was able to return a QList<QString> or QStringList. So, how would I do this?
The reason I want to do this is I want to pass a struct I created, the best way I've found is to convert it to the QList in question, if anyone can think of a better way of passing a whole struct please do tell. The struct is in this format:
@
struct mySubStruct {
char *name;
char *value;
struct mySubStruct *next;
struct mySubStruct *prev;
}
struct myStruct {
mySubStruct data1;
mySubStruct data2;
mySubStruct data3;
etc.;
etc.;
}
@Now, keep in mind I use this struct all throughout my program, now what I'm doing is just passing the data from the struct to my Qml gui to be displayed, now from Qml I want to be able to access it sort of like this:
@
// This is in a "Component.onCompleted"
var data_list = myImportedClass.getDataList();
for(var i = 0; i < data_list.length; i++) {
myModel.append({
item1: data_list[i]["name1"],
item2: data_list[i]["name2"],
etc.,
etc.
});
}
@or like this:
@
// This is in a "Component.onCompleted"
var data_list = myImportedClass.getDataList();
for(var i = 0; i < data_list.length; i++) {
myModel.append({
item1: data_list[i].name1,
item2: data_list[i].name2,
etc.,
etc.
});
}
@I hope I provided enough info, and thanks in advance for any help.
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Unfortunately, this won't work. You should be able to get something similar working, by returning a QVariantList where each element is a QVariantMap containing just a single key/value pair - in this case, the QVariantList is converted to a JS array and each element will be a JS object. You could alternatively define QObject types to expose the members of your struct, and use a QDeclarativeListProperty - but I don't recommend that, obviously, as performance would be hideous and it's likely overkill for what you want to do.
Cheers,
Chris. -
Thank you, it works wonderfully! QVariantList with QVariantMap is exactly what I was looking for :D I just wish I could mark a question as answered, and vote up answers and stuff...