Observable.Add(handler) to a ISignal doesn't execute the handle function when the property value has changed

As the title suggest, when trying to Observable.Add( handler ) there is an issue where, when changing the property binded to this Observable, the handler is not called.

This issue has been reproduced in the FSI by referencing only Gjallarhorn.dll. The steps are the following :

run the following code line by line by sending it to F# interactive. The last 3 lines, do not trigger any of the two observables handlers.

module test =
    type V = { A : int ; B : int }

    let v = Mutable.create { A = 0 ; B = 0 } 

    let a = v |> Signal.map (fun v -> v.A) 
    let b = v |> Signal.map (fun v -> v.B) 

    a |> Observable.add (fun a -> printfn "A changed to %d" a) 
    b |> Observable.add (fun b -> printfn "B changed to %d" b) 

    v.Value <- { v.Value with A = 12 } 
    v.Value <- { v.Value with B = 2 }
    v.Value <- {A = 5 ; B = 6} ```

[ReedCopsey]

Fixed in 0.0.9 - now on NuGet https://www.nuget.org/packages/Gjallarhorn.Bindable.Wpf/

Let me know if you have any other issues.

[FoggyFinder]

thanks, got it - I did not pay attention to the “line by line” =(