SetRoleNames in Qt 5.0.1
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I try to use some code...
@
ListModel::ListModel(ListItem* prototype, QObject *parent) :
QAbstractListModel(parent), m_prototype(prototype)
{
setRoleNames(m_prototype->roleNames());
}
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but QAbstractListModel don't contains function setRoleNames in Qt 5.0.1 libraryes, why and how to fix. I need to use some model from c++ and show it in QML[Please wrap code in @ tags -- mlong]
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The problem is that ListModel is intended for simple lists without roles. You just have to use a more appropriate model that supports roles such as QStandardItemModel. Just look at this for a full example on how to use role names with C++:
http://www.developer.nokia.com/Community/Wiki/Using_QStandardItemModel_in_QML
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QStandardItemModel not contains method setRoleNames too. In example http://www.developer.nokia.com/Community/Wiki/Using_QStandardItemModel_in_QML i download file.
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RoleItemModel::RoleItemModel(const QHash<int, QByteArray> &roleNames)
{
setRoleNames(roleNames);
}
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when compile i have error:
C3861: setRoleNames identificator not found
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Just read the example I sent you. It shows you exactly how to assign role names to a model.
Quote:
"There is no magic in RoleItemModel - it merely calls QAbstractItemModel::setRoleNames, which happens to be a protected member of QAbstractItemModel."
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http://www.picshare.ru/view/1253145/
QtCreator intellisanse show that.
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razario. That is a protected member. You cannot call it unless you subclass the model.
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if it's protected I herit QAbstractItemModel and I try to use it in child class:
this-> ...
but it's not contains it.
I open qstandarditemmodel.h and that's NOT contains this methodб сlass inherits.
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Decided no more setRoleNames in Qt 5 methods. I need to override roleNames
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I have tried following the above comments but still I'm not getting the desired results, I'm not able to replace setRoleNames() with roleNames().
Can someone give an example or a code snippet which will show how we can port setRoleNames() API in Qt5 by overriding roleNames() API?
