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fix: complete command execution only when pipeline completes #1244

kentcb opened this Issue Jan 25, 2017 · 0 comments


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kentcb commented Jan 25, 2017

Do you want to request a feature or report a bug?


What is the current behavior?

A reactive command's execution completes whenever a value ticks.

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem

Create a command that ticks multiple values:

var ticks = Observable.Timer(TimeSpan.Zero, TimeSpan.FromSeconds(1)).Take(3);
var command = ReactiveCommand.CreateFromObservable(ticks);

When you execute the command, you'll see its IsExecuting changes to false as soon as the first value is ticked rather than waiting for all 3 values to tick.

What is the expected behavior?

An execution pipeline should complete before the command becomes available again.

What is the motivation / use case for changing the behavior?

Erroneous behavior. Ticking multiple values can be useful in certain circumstances (such as reporting progress throughout execution).

Which versions of ReactiveUI, and which platform / OS are affected by this issue? Did this work in previous versions of ReativeUI? Please also test with the latest stable and snapshot ( versions.


@kentcb kentcb self-assigned this Jan 26, 2017

@ghuntley ghuntley added this to the vNext milestone Jan 31, 2017

ghuntley added a commit that referenced this issue Jan 31, 2017

@ghuntley ghuntley removed the in progress label Jan 31, 2017

kentcb added a commit that referenced this issue Feb 20, 2017

@kentcb kentcb changed the title Command execution should end when pipeline ends fix: complete command execution only when pipeline completes Feb 25, 2017

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