Bug Report T1277452
Visible to All Users

Core - ValueManagerContext.EnsureIsActive method sometimes throws an exception in the OnCircuitClosedAsync method

created 15 days ago (modified 15 days ago)

Steps to reproduce:

  1. Run an XAF Blazor app;
  2. Open a browser tab with this app;
  3. End the browser process;
  4. Wait several minutes (3 in the case of Chrome).

Expected results:

The app runs normally.

Current results:

Sometimes, the exception occurs:

Call Stack
System.InvalidOperationException: The ValueManagerContext is not active. at DevExpress.ExpressApp.Blazor.AmbientContext.ValueManagerContext.EnsureIsActive() at DevExpress.ExpressApp.Blazor.AmbientContext.ValueManagerContext.SetStorage(IValueManagerStorage storage) at DevExpress.ExpressApp.Blazor.AmbientContext.ValueManagerStorageContext.DevExpress.ExpressApp.Blazor.AmbientContext.IValueManagerStorageContext.EnsureStorage() at DevExpress.ExpressApp.Blazor.Services.XafApplicationProvider.GetApplication() at DevExpress.ExpressApp.Blazor.Services.ApplicationSaveModelChangesOnCircuitClosed.OnCircuitClosedAsync(CancellationToken cancellationToken)

Additional information:

The issue is not reproduced each time.

Answers approved by DevExpress Support

created a day ago

We have addressed the issue described in this ticket and will include a fix in our next maintenance update. Should you need to apply our fix prior to official release, you can request a hotfix here.

Important Notes:

  • Hotfixes may be unavailable for Early Access/Beta builds or updates set for release within a week.
  • .NET only: in the NuGet Package Manager, use your personal NuGet feed and check the "Include prerelease" option to view the hotfix package in the "Updates" tab.

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