Please show me how to iterate QMap<QString ,QList<structure *>> obj in Qt ?

[avinash.r.p]

Please show me how to iterate QMap<QString ,QList<structure *>> obj in Qt ?

[JonB]

@avinash-r-p
Not sure which you mean, but QMap can be iterated via https://doc.qt.io/qt-5/qmap-iterator.html, and QList via https://doc.qt.io/qt-5/qlist-iterator.html. You access a map item's value via https://doc.qt.io/qt-5/qmap-iterator.html#value. See also https://stackoverflow.com/questions/8517853/iterating-over-a-qmap-with-for for an example. Not sure what else there is to say...

[Pl45m4]

@avinash-r-p

I guess you have problems iterating your combination of these containers?!
If you know how to iterate through a QMap, replace (in your head) QList<struct *> with a primitive data type (like an integer). Then think about it, how it would look like and what you need to change, if you replace your obj.value with a complex datatype (your mapped QList of structure * structs instead of an int).
It's not that hard :-) @JonB already provided useful links which will show you how to iterate through every of your mentioned containers. You just need to combine them.