C# and Javascript Error : OnInternalCenterChanged(Coordinate coordinate)

[VibertJ]

Hello, I have the following Javascript Error in my projet and I can see you have the exact same problem on your demo site : https://openlayers-blazor-demo.laurent-christen.ch/ blazor.webassembly.js:1 Uncaught (in promise) Error: System.NullReferenceException: Arg_NullReferenceException at OpenLayers.Blazor.Map.OnInternalCenterChanged(/Coordinate coordinate) at g.endInvokeDotNetFromJS (blazor.webassembly.js:1:3136) at Object.gn [as endInvokeDotNetFromJS] (blazor.webassembly.js:1:58655) ... Those errors accumulates (see my screenshot of DevTools) and seems to have secondaries effects on you demo project. (I'm not sure but markers don't work anymore) Any ideas of a fix ? Best regards, Jerome

In my Blazor server project, the debugger stops on OnInternalCenterChange (screenshot bellow)

[artemfomin]

Same issue with OSM. No fix yet

[artemfomin]

As it is the first error thrown by JS might appear (yet untraceable) that other features like adding a marker don't work due to initial map JS object failure. Tried different ways of dynamic adding markers (from the one from examples to manual SetLayers()) but none works. As a surface fix might be in Map.cs:

public async Task OnInternalCenterChanged(Coordinate coordinate)
{
  if (coordinate?.Equals(this.Center) ?? true)
    return;
  this.Center = coordinate;
  await this.CenterChanged.InvokeAsync(coordinate);
}

[lolochristen]

The component had a major serialization issue with some local settings/globalization settings. When explicitly enforcing locals with a comma as decimal separators, I could also not add markers as coordinates have been invalid and raising events failed. The serialization issue is fixed (including some unit tests) in latest version 1.5.4. Please verify.

[VibertJ]

For my specific context (OpenStreetMap), you have fixed the Javascript error and made the add of Markers functional. I appreciate your effort ! 🙏🏼 Jerome