I  am getting a few problems with consistency within my trial application, can you please advise me on the following. I wish to load form1 and have an instance of navigator running in the background (hidden behind form1) the load event assigns a handler to the RawGpsReceived  event.

When this event fires I wish to activate a timer that periodically will activate the background worker to plot the gps data. The problem is that the event doe’s not always fire when data is being received. Form1 load event is below.

When I check navigator the gps data is being plotted but the RawGpsReceived event has not fired. On other occaisions the evvnt doe's fire?

Regards,

Joe

What happens in the RawCancel() routine? Since the RawGpsReceived event occurs very frequently it's important you don't have any long-running routines called in this event handler.

Peter

Hi Peter,

Thanks for your response. I only want the raw event to kick start the background worker (ensuring that the device is receiving data) which in turn writes the position data to a sqlce table on the device, the timer is set by the bwRoute_RunWorkerCompleted routine to update the position data by calling the background worker periodically (no more often than every 15 minutes). When the raw event works everything else falls into place quite neatly.  I am not able to achieve this consistently.

Regards,

Joe

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Have you tried taking out your code from the event handler and just logging every time the event is raised - Debug.WriteLine for example. Normally this event will be triggered every second or more with normal GPS data. If you only want to catch the event every 15 mins you could log the current time and check the time against this value every time the event is raised, once the two values are greater than 15 mins then you call your backgroundWorker.

Peter