[solved]connect: No such slot QItemDelegate::invalidData()

ras123

Hi,
I tried to connect signals from a object to the function declared in MyDeleagate which inherits QsqlRelationalTableDelegate
@MyDelegate::MyDelegate(QObject *parent) : QSqlRelationalDelegate(parent)
{
blankCheck = new BlankCheck();
reset();
QObject::connect(blankCheck, SIGNAL(invalidEntry()), this, SLOT(invalidData()));
}@

@void MyDelegate::invalidData()
{
qDebug() << "Invalid Entry";
}@

and the class declaration is
@class MyDelegate : public QSqlRelationalDelegate
{
public:
MyDelegate(QObject *parent);
QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option,
const QModelIndex &index) const;
void setEditorData(QWidget *editor, const QModelIndex &index) const;
void setModelData(QWidget *editor, QAbstractItemModel *model,
const QModelIndex &index) const;
void reset();

private:
BlankCheck *blankCheck;

private slots:
void invalidData();

};@

It is compiled, but while running the program, following error occurs

Object::connect: No such slot QItemDelegate::invalidData() in mydelegate.cpp:15

Why I can't connect these?

Thanking You,
Ras

andre

You forgot the Q_OBJECT macro in your declaration.

Without this macro, signals, slots and introspection features will not work.

ras123

Hi,
Thank you, but when using Q_OBJECT marco following errors while compiling! Why?

mydelegate.cpp:10: error: undefined reference to `vtable for MyDelegate'

andre

Did you re-run qmake after adding Q_OBJECT?

ras123

Thanks Solved the issue.