Comments (2)
Looking back at this, I believe this is by design.
If you want to avoid it, you can use a Sync command that just starts an async workflow. The entire reason behind the separate Async command support was to allow it to track execution and disable.
I believe you can "workaround" this behavior if you don't like the defaults by doing:
type MainWindowViewModel() as this =
inherit ViewModelBase()
let asyncWorkflow _ =
async {
do! Async.Sleep(3000)
System.Diagnostics.Debug.WriteLine("asyncWorkflow completed.")
}
|> Async.Start
member val DoSomethingAsync = this.Factory.CommandSync(asyncWorkflow)
from fsharp.viewmodule.
The relevant code for this is here:
https://github.com/fsprojects/FSharp.ViewModule/blob/master/src/FSharp.ViewModule/MVVM.fs#L247
and:
https://github.com/fsprojects/FSharp.ViewModule/blob/master/src/FSharp.ViewModule/FunCommand.fs#L43
In hindsight, it'd probably be a good idea to automatically add OperationExecuting as a dependent property.
from fsharp.viewmodule.
Related Issues (20)
- Constructor fails inside an array under xUnit HOT 5
- Command with multibinding parameter HOT 2
- OperationExecuting probably not working correctly. HOT 1
- Unable to load the FSharp.ViewModule project in Visual Studio 2015 update 1 HOT 4
- TypeProvider removed with no migration plan or forwarding address HOT 3
- CommandAsyncChecked does not respect CanExecute's return value HOT 6
- Add OperationExecuting as a dependency to Async commands
- Where is this.Factory.SetPropertyDependencies? HOT 2
- Auto-generated UI from F# types HOT 3
- Samples, documentation HOT 1
- XAML editor indicates DataContext does not support view model's type HOT 4
- RaiseCanExecuteChanged does not fire? HOT 13
- EventViewModelBase Backing Field causes XamlObjectWriterException HOT 6
- Execption raises when asynchronous call to a dependent propertie HOT 3
- CollectionChanged not triggering the PropertyDependencies of a Factory.CommandSyncChecked HOT 5
- Backing fields throwing an exception for duplicated keys
- Publish FSharp.ViewModule to NuGet and change FsXaml to get FSharp.ViewModule from NuGet HOT 1
- AppVeyor build is failing HOT 1
- Factory.EventValueCommand does not handle null properly..(?) HOT 4
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from fsharp.viewmodule.