Signing, Distribution, Updates and the FieldOps Capstone

Hybrid & Native PackagingModule 6The samples are ready before the course is: the module outline is on learnwisej.com, and the lessons, the knowledge checks and the hands-on labs follow when it launches — free, with an AI tutor in every lesson.

See the outline

The client screen — FieldOps · Today, the grid Order · Task · Location · State (WO-4118 Pump seal replacement · Bay 3 · Kirkwall, WO-4119, WO-4121, plus WO-4187 from Module 5), the Take Photo · Signature · Navigate bar and the version note — and the update screen an outdated client gets instead: This FieldOps app must be updated, Installed 2.6.0 / Required 2.7.0, Open Company Portal, Device.Launcher.TryOpenAsync(storePage).

The source of this sample

iceteagroup/LearnWisej-SamplesHybrid and Native Packaging Course/Module 6

Browse this folder on GitHub

Or clone it: git clone https://github.com/iceteagroup/LearnWisej-Samples.git — then open FieldOps.slnx in Visual Studio and press F5.

Run it

cd "Hybrid and Native Packaging Course/Module 6/FieldOps"
dotnet run -f net10.0 --urls http://localhost:6306

Client as in Modules 3–5 (it is now version 2.6.0). Change the WinUI line of FieldOps/ClientPolicy.json (minimum / latest) and restart the client to see the three outcomes; the policy is re-read on every check, no server restart needed.

What to try

Action	Expected result
Browser	List loads; no version check (Device.Valid false); footer 4 orders · browser.
Client 2.6.0, policy 2.4.0 / 2.6.0	Admitted; first launch of 2.6.0 → What's new in 2.6.0: … (dismiss by clicking it).
Policy latest 2.7.0	A newer FieldOps client (2.7.0) is available — update when you can. ✕; work orders load.
Policy minimum 2.7.0	The update screen; no work order loaded; Export / Open in new window / the device bar are gone; Open Company Portal → Device.Launcher.TryOpenAsync.
Any device feature (photo, signature, navigate, reminder, permission prompt)	One usage: line in the server log and %LOCALAPPDATA%\FieldOps\usage.jsonl: feature, outcome, platform, model, OS version, client version — no names, images or coordinates.
An unhandled exception in a session	UNHANDLED session … client WinUI 2.6.0 in the server log.

What was verified, and how

• Builds: FieldOps; FieldOps.Client + FieldOps.Offline for net9.0-windows10.0.19041.0 and net9.0-android (Debug): 0 errors, 0 warnings.
• Release packages (no signing identity exists here, none was created): dotnet publish -c Release -p:AppxPackageSigningEnabled=false → unsigned FieldOps.Client_2.6.0.260_x64.msix (44.6 MB); dotnet publish -f net9.0-android -c Release → com.contoso.fieldops.aab (81 MB) and com.contoso.fieldops-Signed.aab, signed by the build with the machine's debug keystore because no Signing.props (upload key) exists — not a releasable signature. iOS / Mac Catalyst not built (no Mac). Nothing was installed.
• Browser (fieldops-m6): the Today list; the browser session skipped the version check; a signature produced usage: {"feature":"signature.save","outcome":"ok","client":"browser",...}.
• Windows Hybrid client (unpackaged, licensed) against three policies, from the server log and captures of the client window (docs/screenshots/): 2.4.0/2.6.0 → admitted + What's new in 2.6.0; 2.4.0/2.7.0 → notice + version.check behind-latest; 2.7.0/2.7.0 → update screen, BLOCKED WinUI 2.6.0, version.check update-required.
• Not exercised: the store button's TryOpenAsync (needs a click in the window), the client crash path (no crash was provoked), Android/iOS runs.

Where this sample differs from the lesson

• Signed packages: the lab asks for signed MSIX/AAB/iOS packages. The configuration and commands are complete, but the build machine has no signing identities and the brief forbids creating or trusting them, so the produced MSIX is unsigned and the AAB carries only the debug signature.
• Unpackaged version source: the first client run was blocked as 1.0.0 although ApplicationDisplayVersion was 2.6.0 — an unpackaged Windows client reports the assembly version. Properties/AssemblyInfo.cs now carries 2.6.0.0 as well.
• Start shift also runs automatically when the list loads ("checked on startup"), and stays as a button to re-check after an update. The video shows no such button.
• The note strip replaces the note line: Admitted · client 2.6.0 is current, the notice, or What's new (one at a time).
• Export report / Open in new window (Module 3) stay in the top strip; the capstone window does not show them.
• States: the Closed is FieldOps' Completed.
• Crash reporting is a hook (CrashReporting.Report) plus /client-log, not a third-party SDK — the samples ship no commercial libraries.
• Client project name: the FieldOps.HybridClient is FieldOps.Client.