SetViewpointAsync causing random AccessViolationException

Question

I'm running into the following randomly: System.AccessViolationException was unhandled Message: An unhandled exception of type 'System.AccessViolationException' occurred in WindowsBase.dll Additional information: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.

A little background:

- I'm running Runtime v100.0

- The app is written using MVVM and Prism IoC

- There's a View (TwoDView) which has a MapView

- TwoDView has a ViewModel (TwoDViewModel) which navigates -- uses RequestNavigate(...) -- to a view (ThreeDView) which has SceneView

- ThreeDViewModel responds to the navigation and applies the camera (calling a controller, created to manage the SceneView using a WeakReference<>) passed via navigation parameters

- The controller calls SetViewpointCameraAsync

There is also a back button in ThreeDView to allow going back to TwoDView for selecting another 3D area for inspection.  It seems multiple calls to SetViewpointCameraAsync is causing my issue...if I use SetViewpointCamera...no issue (it seems).  Any ideas??

ChadLeppanen · Answer

Hello again,

We're working on a sample application right now to isolate the use of the method. We'll verify that we continue to get access violation before passing it your way. Could take a while since the occurrence of the violation itself is random, and it generally takes several hours of running the application through functional simulation for us to hit it.

We are also gathering event viewer logs, and can provide dump files that might help, although they didn't really help us all too much.

Thanks!

Chad

MichaelBranscomb · Answer

Hi,

It should have been addressed for all our .NET APIs in the 100.1 release (it was a bug in the underlying C++ codebase which is shared by both WPF and Android).

Please can you share your code that shows this issue in WPF?

Cheers

Mike

ChadLeppanen · Answer

Hi MBranscomb-esristaff,

Is there a timeline for when SetViewpointAsync will be available for the WPF SDK? I see that this issue is listed as addressed in the 100.1 release notes, but specifically for android and I'm still hitting this exception with the WPF SDK. Just curious when this will be rolled out to other languages as well.

Thank you.