Hangfire - NullReferenceException

[DannyRawlings]

𝗗𝗲𝘀𝗰𝗿𝗶𝗯𝗲 𝘁𝗵𝗲 𝗯𝘂𝗴
When I save a new or existing job it throws the NullReferenceException.. If I refresh the screen, the record is created or updated

Version 23.1
Latest xpand version

Error

The error occurred:

	Type:       NullReferenceException
	Message:    Object reference not set to an instance of an object.
	Data:       0 entries
	Stack trace:

   at Xpand.XAF.Modules.JobScheduler.Hangfire.JobSchedulerService.JobExpression(MethodInfo method) in D:\a\1\s\src\Modules\JobScheduler.Hangfire\JobSchedulerService.cs:line 226
   at Xpand.XAF.Modules.JobScheduler.Hangfire.JobSchedulerService.AddOrUpdateHangfire(Job job, IServiceProvider serviceProvider) in D:\a\1\s\src\Modules\JobScheduler.Hangfire\JobSchedulerService.cs:line 0
   at Xpand.XAF.Modules.JobScheduler.Hangfire.JobSchedulerService.<>c__DisplayClass28_0.<ScheduleJobs>b__0(Job scheduledJob) in D:\a\1\s\src\Modules\JobScheduler.Hangfire\JobSchedulerService.cs:line 205
   at System.Reactive.Linq.ObservableImpl.SelectMany`2.ObservableSelector._.OnNext(TSource value) in /_/Rx.NET/Source/src/System.Reactive/Linq/Observable/SelectMany.cs:line 869
	InnerException is null

[apobekiaris]

please provide a sample solution using the InMemoryStore and detailed repro instructions

[DannyRawlings]

No probs, I'll come back to you next week

[DannyRawlings]

See attached example, just log in, go to Jobs, create a new job and just save it.. Then go back and try to edit the job and again save it. You should see the error. I have also attached a video showing my steps.

Xpand.Test.zip

2023-06-19_09h37_49.mp4

[apobekiaris]

The pre-release 4.231.1.0 in the Reactive.XAF lab branch includes commits that relate to this task:

• JobScheduler: NullReference when editing a job #1003

To minimize version conflicts we recommend that you use the Xpand.XAF.Core.All, Xpand.XAF.Win.All, Xpand.XAF.Web.All packages. Doing so, all packages will be at your disposal and .NET will add a dependecy only to those packages that you actually use and not to all (see the Modules installation-registrations youtube video).

Released packages:

Xpand.Extensions v.4.231.0
Xpand.Extensions.Blazor v.4.231.0
Xpand.Extensions.Mono.Cecil v.4.231.0
Xpand.Extensions.Office.Cloud v.4.231.0
Xpand.Extensions.Office.Cloud.Google.Blazor v.4.231.0
Xpand.Extensions.Reactive v.4.231.0
Xpand.Extensions.XAF v.4.231.0
Xpand.Extensions.XAF.Xpo v.4.231.0
Xpand.TestsLib v.4.231.0
Xpand.TestsLib.Blazor v.4.231.0
Xpand.TestsLib.Common v.4.231.0
Xpand.TestsLib.EasyTest v.4.231.0
Xpand.VersionConverter v.4.231.0
Xpand.XAF.Core.All v.4.231.0
Xpand.XAF.Modules.AutoCommit v.4.231.0
Xpand.XAF.Modules.Blazor v.4.231.0
Xpand.XAF.Modules.BulkObjectUpdate v.4.231.0
Xpand.XAF.Modules.CloneMemberValue v.4.231.0
Xpand.XAF.Modules.CloneModelView v.4.231.0
Xpand.XAF.Modules.Email v.4.231.0
Xpand.XAF.Modules.GridListEditor v.4.231.0
Xpand.XAF.Modules.HideToolBar v.4.231.0
Xpand.XAF.Modules.JobScheduler.Hangfire v.4.231.0
Xpand.XAF.Modules.JobScheduler.Notification v.4.231.0
Xpand.XAF.Modules.MasterDetail v.4.231.0
Xpand.XAF.Modules.ModelMapper v.4.231.0
Xpand.XAF.Modules.ModelViewInheritance v.4.231.0
Xpand.XAF.Modules.Office.Cloud.Google v.4.231.0
Xpand.XAF.Modules.Office.Cloud.Google.Calendar v.4.231.0
Xpand.XAF.Modules.Office.Cloud.Google.Tasks v.4.231.0
Xpand.XAF.Modules.Office.DocumentStyleManager v.4.231.0
Xpand.XAF.Modules.OneView v.4.231.0
Xpand.XAF.Modules.PositionInListView v.4.231.0
Xpand.XAF.Modules.ProgressBarViewItem v.4.231.0
Xpand.XAF.Modules.RazorView v.4.231.0
Xpand.XAF.Modules.Reactive v.4.231.0
Xpand.XAF.Modules.Reactive.Logger v.4.231.0
Xpand.XAF.Modules.Reactive.Logger.Client.Win v.4.231.0
Xpand.XAF.Modules.Reactive.Logger.Hub v.4.231.0
Xpand.XAF.Modules.Reactive.Rest v.4.231.0
Xpand.XAF.Modules.RefreshView v.4.231.0
Xpand.XAF.Modules.SequenceGenerator v.4.231.0
Xpand.XAF.Modules.Speech v.4.231.0
Xpand.XAF.Modules.SpellChecker v.4.231.0
Xpand.XAF.Modules.StoreToDisk v.4.231.0
Xpand.XAF.Modules.SuppressConfirmation v.4.231.0
Xpand.XAF.Modules.TenantManager v.4.231.0
Xpand.XAF.Modules.ViewEditMode v.4.231.0
Xpand.XAF.Modules.ViewItemValue v.4.231.0
Xpand.XAF.Modules.ViewWizard v.4.231.0
Xpand.XAF.Modules.Windows v.4.231.0
Xpand.XAF.Web.All v.4.231.0
Xpand.XAF.Win.All v.4.231.0

Please update the related Nuget packages and test if issues is addressed. These are nightly nuget packages available only from our NugetServer.

If you do not use these packages directly but through a module of the main eXpandFramework project, please wait for the bot to notify you again when integration is finished or update the related packages manually.

Thanks a lot for your contribution.

[apobekiaris]

eXpand.lab release 23.1.301.2 includes commit that relate to this task:

• Update rx packages #1003

Please test if it addresses the problem. If you use nuget add our LAB NugetServer as a nuget package source in VS.

To minimize version conflicts we recommend that you switch to PackageReference format and use only the eXpandAgnostic, eXpandWin, eXpandWeb packages. Doing so, all packages will be at your disposal and .NET will add a dependecy only to those packages that you actually use and not to all (see the Modules installation-registrations youtube video).

Thanks a lot for your contribution.

[DannyRawlings]

I have tested the updated version, the error still persists with existing records when updating them. It works fine however when create a new job and update it.. I have also noticed, the Id Guid field no longer auto populates

[apobekiaris]

I have also noticed, the Id Guid field no longer auto populates

this was a mistake fortgotten from my previous version tests it should not autopopulate.

It works fine however when create a new job and update it.. I have also noticed, the Id Guid field no longer auto populates

Records created under this they should suffer I am sorry for this

[DannyRawlings]

this was a mistake fortgotten from my previous version tests it should not autopopulate.

No probs

Records created under this they should suffer I am sorry for this

Total understand, it doesn't effect me as I've only been testing it

Thank you for your quick support

[apobekiaris]

eXpand.lab release 23.1.502.0 includes commit that relate to this task:

• Update rx packages #1003

Please test if it addresses the problem. If you use nuget add our LAB NugetServer as a nuget package source in VS.

To minimize version conflicts we recommend that you switch to PackageReference format and use only the eXpandAgnostic, eXpandWin, eXpandWeb packages. Doing so, all packages will be at your disposal and .NET will add a dependecy only to those packages that you actually use and not to all (see the Modules installation-registrations youtube video).

Thanks a lot for your contribution.