Data Endpoints

A vendor grid pulls JSON from a postback URL handled in the widget's WebRequest event, and the same grid, next to it, gets its rows from a [WebMethod] it calls and awaits. The Network card lists every request, response and call.

Nothing here is deployed anywhere; it is a plain Wisej.NET 4 project that runs on your machine.

Run it

cd "LearnWisej-Samples/Application Integration Course/Module 8/IntegrationLab"
dotnet run -f net10.0 --urls http://localhost:5078

Then open http://localhost:5078. (Visual Studio: open IntegrationLab.slnx, press F5.)

Requirements: .NET 10 SDK, the Wisej-4 4.1.0 NuGet package. Build check: dotnet build -nologo -v q (warning CS7022 about Program.Main is expected).

What to try in the Work Orders page

Action	What you should see
(page load)	both grids show 10 work orders starting at WO-1042, footer `page 1 / 12`; the Network card shows `⇄ HTTP [postback] GET …&action=load…` → `200 application/json` for the left grid and `← [webmethod] App.MainPage.GetWorkOrders {…}` → `→ return PageResult {…}` for the middle one
the grid's ‹ Prev / Next › buttons	each grid fetches the next page through its own transport (GET with `page=2` / a WebMethod call with `"page":2`)
a click on a column header	sorts by that column (a second click toggles descending); `sort` is whitelisted on the server
a click on a row	a small toast names the selected work order (`rowClick` event)

Failures surface as an error toast plus the vendor grid's red error row. To see the rejections, re-send the grid's postback request from DevTools with action=delete or size=1000 (answered 400 {"error"}), or call App.MainPage.GetWorkOrdersAsync(1, 1000, "", false) in the console (ArgumentException, Wisej popup, the Promise resolves null).

Where things live

IntegrationLab/
├─ Data/
│  ├─ WorkOrder.cs             entity + the WorkOrderRow DTO mapping
│  ├─ WorkOrderService.cs      120 deterministic work orders, LoadPage(page, size, sort, desc)
│  ├─ PageRequest.cs           the validation both endpoints share (bounds + sort whitelist)
│  └─ PageResult.cs            wire shape {rows,total,page,size,sort,desc}
├─ Widgets/
│  ├─ GridWidget.cs            postback path: WebRequest += grid_WebRequest
│  ├─ LookupWidget.cs          WebMethod path: ExecuteGetWorkOrders, called by MainPage.GetWorkOrders
│  └─ GridEventArgs.cs         event payload types (data, never behavior)
├─ wwwroot/
│  ├─ vendor-grid.js / .css    the "third-party" VendorGrid library (Packages)
│  ├─ grid-init.js             adapter: transport.read.url = this.getPostbackUrl() + "&action=load"
│  └─ lookup-init.js           adapter: load(query) awaits App.MainPage.GetWorkOrdersAsync(...)
├─ docs/                       the three deliverables
├─ MainPage.cs / .Designer.cs  IntegrationLab — Work Orders (Application.MainPage, [WebMethod] GetWorkOrders)
├─ Program.cs                  Wisej.NET session entry point
└─ Startup.cs                  Kestrel host (app.UseWisej())

Run it​

What to try in the Work Orders page​

Where things live​

Run it

What to try in the Work Orders page

Where things live