[Solved]QVariant to QList

[Beka]

I have a QVariantMap, and values are QVariantMaps or QStringList, or map with lists... but when I call .toStringList() or .toList() it works fine, but after calling .clear(), removeAt(), takeAt() or something similar, it does nothing! what i am doing wrong?

@myMap.value("value").toMap().value("otherValue").toStringList().removeOne("something");@

[mlong]

toStringList() returns a copy of the list, not a reference. So any changes you make are immediately discarded.

[Beka]

Okay, so how can I remove something from that list?

[mlong]

@
QStringList templist = myMap.value("value").toMap().value("otherValue").toStringList();
templist.removeOne("something");
myMap.value("value").toMap().insert("otherValue",templist);
@

Brain to terminal. YMMV.

Basically grab a copy of the list, modify the copy, then reinsert back into your map.

[Beka]

yes, it was my first guess, but it doesnt work...

[mlong]

Ah, the toMap() also returns a copy, btw. Same issue, just next level up. Need a temp QMap, as well.

[Beka]

Thank you, it works now