beginInsertRows & endInsertRows doesn't refresh enough items in view

[jronald]

Env

Linux
Qt 6.2.0

Screenshot

original as below

insert "111" at pos 1 as below, the problem is that "fff" doesn't show

collapse & expand "bbb", everything becomes ok as below

Code

beginInsertRows(parent_index, n, n); // n = 1
...
endInsertRows();

Question

How to fix it?

[jronald]

The problem should be in QModelIndex DemoModel::parent(const QModelIndex &index) const

row in returned QModelIndex should be relative to grand parent.

Thanks

[Christian Ehrlicher]

@jronald said in beginInsertRows & endInsertRows doesn't refresh enough items in view:

How to fix it?

Provide a minimal, compilable example of your problem so we can take a look what you're doing wrong.

[jronald]

@Christian-Ehrlicher said in beginInsertRows & endInsertRows doesn't refresh enough items in view:

Provide a minimal, compilable example of your problem so we can take a look what you're doing wrong.

Modified simpletreemodel in official examples, but it works properly, code at https://ufile.io/4egsoww3
It might be my bug, I'll check it again

[jronald]

The problem should be in QModelIndex DemoModel::parent(const QModelIndex &index) const

row in returned QModelIndex should be relative to grand parent.

Thanks