eXpand How to setup nonpersistent objects

The sample provided in the documentation doesn't compile.

public override void Setup(ApplicationModulesManager moduleManager){ base.Setup(moduleManager); moduleManager.WhenApplication().WhenListViewCreating(typeof(NonPersistentObject)) .SelectMany(tuple => ((NonPersistentObjectSpace) tuple.args.ObjectSpace) .WhenObjectsGetting().Do(_ => { _.e.Objects = new BindingList<NonPersistentObject>(); }) ) .Subscribe(this); }

WhenApplication expects a parameter.

Feb 02 '21 21:02 james1o4timothy

We will try to answer all questions that do not require research within 24hr. To prioritize cases that require research we use the following labels in order. For all other issues the posting time is respected.

This case is prioritized.

Feb 02 '21 21:02 apobekiaris

thanks will update the docs as per next snippet

public override void Setup(ApplicationModulesManager moduleManager) {
            base.Setup(moduleManager); 
            moduleManager.WhenApplication(application => application.WhenListViewCreating(typeof(NonPersistentObject))
                .SelectMany(t => ((NonPersistentObjectSpace) t.e.ObjectSpace)
                    .WhenObjectsGetting()
                    .Do(_ => _.e.Objects = new BindingList<NonPersistentObject>())) )
                .Subscribe(this);
        }

Feb 02 '21 21:02 apobekiaris

Error CS0411 The type arguments for method 'XafApplicationRxExtensions.SelectMany<T>(XafApplication, IObservable<T>)' cannot be inferred from the usage. Try specifying the type arguments explicitly.

Feb 06 '21 07:02 james1o4timothy

am using these

using Xpand.XAF.Modules.Reactive.Services; using Xpand.XAF.Modules.Reactive.Extensions; using System.Linq;

Feb 06 '21 07:02 james1o4timothy

sample me please in an empty xaf solution using only the Xpand.XAF.Modules.Reactive package, note u can use any package u want I just want to simplify your attempt for your better understanding

Feb 06 '21 09:02 apobekiaris

also just reference this a c# generics usage mistake rather an issue with our RX api

https://stackoverflow.com/questions/4969321/the-type-arguments-cannot-be-inferred-from-the-usage-try-specifying-the-type-ar

Feb 06 '21 10:02 apobekiaris

The pre-release 4.202.51.1 in the Reactive.XAF lab branch includes commits that relate to this task:

Reactive: Update documentation #843

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:

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.

Feb 17 '21 21:02 apobekiaris

Issue is deprioritized as no Assignee found and scheduled for auto-close if no activity in the next 60 days. Thanks a lot for your contribution.

May 02 '22 07:05 apobekiaris

Closing issue for age. Feel free to reopen it at any time.

.Thank you for your contribution.

Dec 31 '23 21:12 expand

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How to setup nonpersistent objects

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