Application Resources, ResourceManager and Wisej System Text

Localization in Wisej.NETModule 3The lesson guide, the walkthrough video, the knowledge check and the hands-on lab this sample was built from are on learnwisej.com — free, with an AI tutor in every lesson.

Open the course

The GlobalDesk customer editor exactly as the walkthrough shows it: the blue application bar, the Name / Email / Notes rows, the italic last-order sentence, the green confirmation pill and the Save / Cancel pair — plus the Wisej.NET MessageBox whose buttons are the framework's own text.

The designed captions still come from CustomerEditor.resx (Module 2). What Module 3 adds is everything the designer can never reach: Resources/Strings.de.resx beside the neutral file, a Customer.LastOrder sentence with two placeholders built through string.Format, and a save service that returns a SaveResult value the UI turns into words.

The source of this sample

iceteagroup/LearnWisej-SamplesLocalization in Wisej.NET Course/Module 3

Browse this folder on GitHub

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

Run it

cd "Localization in Wisej.NET Course/Module 3/GlobalDesk"
dotnet run -f net10.0 --urls http://localhost:6103

Open http://localhost:6103, and http://localhost:6103/?lang=de-DE in a new tab for the German session. culture is auto in Default.json, so each session starts from the browser's Accept-Language and ?lang= overrides it for that session only — reloading the same tab reconnects to the session you already have.

What to try

Action	Expected result
Read the italic line	Anna Weber last ordered on 9/14/2026. — one resource string with {0} and {1}, not three fragments.
Open ?lang=de-DE in a new tab	Anna Weber hat zuletzt am 14.09.2026 bestellt. The date moved into the middle of the sentence and the verb went to the end.
Press Save	The green pill, then a Wisej.NET MessageBox.
Press Save under German	Kunde gespeichert. from Strings.de.resx, and OK / Abbrechen on the dialog — Wisej.NET's own German, with no resource file of ours involved.
Clear Name and press Save	The field turns red and This field is required. appears beside it, from Validation.Required.
Type a broken address and press Save under German	Enter a valid email address. — in English. Validation.Email is missing from the German file on purpose: .NET falls back to the neutral value and nothing throws.
Two tabs, two languages, at once	One server process, two sessions, two cultures.

Notes

• Texts.Get is unchanged from Module 1: one Wisej.Resources.ResourceManager over the base name GlobalDesk.Resources.Strings, and a bracketed [key] when a lookup comes back empty.
• A missing translation and a missing key are different failures. The first falls back to the neutral value silently — Validation.Email in this build proves it. The second shows the bracketed marker. Only the second is visible without looking for it.
• The culture goes to string.Format as well as to each ToString. Without it, string.Format uses the thread's culture, which in a server application is whatever that thread last did.
• The Resources.de.resx override of Wisej's own yes / no labels does not work here, and the lab note says exactly what was tried and what was verified. Wisej already ships German for those buttons, which is why they are German anyway.
• Module 2's culture chip is gone from this screen: the walkthrough switches this module through the address bar instead. Module 4 puts a real language picker on the dashboard.