Static vs dynamic events - dynamic events are empty

During the implementation of my project, I used static events to manage the interface. The Structures of the event separated while loops in the same vi.

I changed the architecture to make code modular and I use dynamic events. Dynamic events are captured in separate subVIs event Structures. I spend the references to the controls in the subVIs that have Structures of the event and I record the events of the references.

Static events had no problem.

With the dynamic events, I see that some events are not consumed. Instead, I see the event inspector window a few times an event is 'empty '. This means that the button should be pressed again.

I am attaching two examples of projects that have exactly the same functionality.

The testDemo2 uses dynamic events.

The testDemo4 uses static events.

How much detail I miss the dynamic architecture events leading to lose some events?

This UI code is crizazy. It is difficult to really say what is happening, but you have a Unregister for events VI after the structure of your event to during each single loop and then re-register at the beginning of each loop. Empty all dynamic events currently in the queue and then re-registered again.

You must only register events, only once and cancel the registration at the end of the application.

What you do isn't really very modular. Even if you add a new event/control, you still he wire through the Subvi references and register, so you're not really save any time. There is nothing wrong with having a static event for your UI record. What you want probably is an architecture of messages in queue manager, where your static user interface events create messages that are sent to a loop of consumer to manage.

Tags: NI Software

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