Traversing QVariantMap

[ggdev001]

Thanks, yes it seems I was trying to read the reply twice and that's why I was getting that effect.

I will try your approaches with isMap and toMap. Just to again highlight what kind of problem I had,
for example the entry in the JSON file is smth like this:
"Key: "result" Value: QVariant(QVariantMap, QMap(("code", QVariant(qlonglong,
1) ) ) )"
after printing them as you suggested.

Now, what I am actually interested in, is the value of "code" which is 1. So, when I try to run
the following command:

if (results.contains("code"))
            qDebug()<<"***code***: "<<results.value("code");

if (results.contains("code"))
            qDebug()<<"***code***: "<<results.value("code");

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it returns an empty string. Which seems to be due to the fact which we mentioned .....

So, you recommend to use isMatp and etc. right??? I will see that approach now, because my JSON
file has a loft of such nested QVariantMaps -- thanks again.

ps. Do you have maybe some samples on the web site or know links which show how to
(recursively, as it appears now) parse the whole JSON file ??? Thanks.

[wysota]

ps. Do you have maybe some samples on the web site or know links which show how to
(recursively, as it appears now) parse the whole JSON file ??? Thanks.

Qt5 can directly read JSON data and parse it to QVariant or QJsonDocument, for Qt4 there is either the QJson project or you can use QtScript to parse a json string to a javascript object.

[ggdev001]

Hi, I am using https://developer.blackberry.com/cas...with_json.html, because
I am doing BlackBerry 10 development.
Yes, indeed I think JasonDataAcess class in my case returns QVariant as the root element of the JSON data; this QVariant on the other
hand contains a QVariantMap in my case.
My problem starts that this QVariantMap has many nested elements inside (including other QVariantMaps), and I want to be able
to retrieve values associated with the keys, of these QVariantMaps. that's why it would be helpful for me to have some tutorial or code sample on it... thanks once again.

[wysota]

I already gave you everything you need. Provided that you know what "recursively" means, you should have no problems in accessing any data in the map that you need.