How to convert QVariant
to QJsonValue
? I know QVariant
provide the toJsonValue
function, but it did not perform as expected.
For example:
qDebug()<<QVariant(1.0).toJsonValue();
qDebug()<<QVariant("test").toJsonValue();
Both return:
QJsonValue(null)
QJsonValue(null)
Expect output:
QJsonValue(double, 1)
QJsonValue(string, "test")
You might do the following:
QVariant dblVariant(1.0);
QVariant strVariant("test");
QJsonValue dblJs(dblVariant.toDouble());
QJsonValue strJs(strVariant.toString());
Your approach doesn't work because variant object should have user type QJsonValue
, but it doesn't. Therefore it returns default constructed QJsonValue
object.
You can use this static function too:
QJsonValue::fromVariant( myVariant )
Check this link for more info.
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