<![CDATA[can't read data from stored data with Qt::UserRole and custom QStandardItemModel()]]>Hi all,
I build QTableview and QStandardItemModel as model. When i store data with
QStandardItem ....itm->setData(qw,Qt::UserRole); and after i can reach the data with index....data(Qt::UserRole).toInt(); successfully.
But when i customize QStandardItemModel and reuse "data(const QModelIndex &index, int role) const" i can't reach indexed data. What value should i return in function or what am i missing?

I tried as below list code but failed.

data(const QModelIndex &index, int role) const
..
if (role == Qt::UserRole)
{
return QVariant(index.data(Qt::UserRole).toInt())
}
or
if (role == Qt::UserRole)
{
return QVariant();
}

]]>https://forum.qt.io/topic/78356/can-t-read-data-from-stored-data-with-qt-userrole-and-custom-qstandarditemmodelRSS for NodeMon, 13 Apr 2026 20:43:41 GMTTue, 18 Apr 2017 06:04:04 GMT60<![CDATA[Reply to can't read data from stored data with Qt::UserRole and custom QStandardItemModel() on Tue, 18 Apr 2017 07:21:47 GMT]]>@VRonin thank you very much

]]>https://forum.qt.io/post/388363https://forum.qt.io/post/388363Tue, 18 Apr 2017 07:21:47 GMT<![CDATA[Reply to can't read data from stored data with Qt::UserRole and custom QStandardItemModel() on Tue, 18 Apr 2017 07:17:07 GMT]]>@mete said in can't read data from stored data with Qt::UserRole and custom QStandardItemModel():

return QVariant(index.data(Qt::UserRole).toInt())

will just call an infinite recursion and converting a variant to an int and back to a variant has no practical application I can see but anyway...
return QVariant(QStandardItemModel::data(index,Qt::UserRole).toInt())

]]>https://forum.qt.io/post/388361https://forum.qt.io/post/388361Tue, 18 Apr 2017 07:17:07 GMT