When reading QJsonArray it gives always 0

Christian Ehrlicher

Or use a proper QDoubleSpinbox

Pl45m4

Or a QLineEdit with an input mask, so you can be sure that is input of this widget gonna be a number. Then you can write it as double to your Json.

https://doc.qt.io/qt-5/qlineedit.html#inputMask-prop

JonB

@suslucoder said in When reading QJsonArray it gives always 0:

ı didnt get my json from anywhere. I create it by myself

So this is not a widget issue, at least at this stage. It's a question of OP deciding on a type to be used in the JSON.

sierdzio

Exactly. You should format the data properly when you save it. Then the whole problem will just go away and a plain toDouble() will work when reading the file.

deleted286

Thanks for all answers. I will reformat my json file and try it again