Question simple signal...

I am trying to hang a simple signal with no params... But I can't get my hands on the appropriate syntax!

The example I'm looking at has the following syntax:

class MyDataModel: public bb::cascades::GroupDataModel
{
Q_OBJECT

Q_PROPERTY(QString myField READ myField WRITE setMyField
    NOTIFY myFieldChanged)
...

  void myFieldChanged(QString value);

  QString myField ();

signals:
  void myFieldChanged(QString value);

In QML, connect the signal by using the following:

  onMyFieldChanged:
  {
    // When the signal is fired.
    console.log("onMyFieldChanged()");
  }

I would add two new signals, but the two signals do not need to read and write properties...

signals:
  void dataFetchStart();
  void dataFetchEnd();

What would the syntax required in the my*.h file... The following syntax does not cause the compiler throw high... but that I can't plug my signal in QML...

Q_PROPERTY(NOTIFY dataFetchStart)
Q_PROPERTY(NOTIFY dataFetchEnd)

Just use:

Q_SIGNAL dataFetchStart() etc. instead of Q_PROPERTY. The property is of values that you want to propagate to QML.

Tags: BlackBerry Developers

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