Transitioner animation incomplete

Hi there. I am using the toolkit in one of my projects and lately came to a strange problem with transitioner control and hoped somebody could help me out figuring whats going on. So i have a transitioner with two slides. The current slide is changed by binding defined in its style like this

                    <Style TargetType="md:Transitioner">
                        <Setter Property="SelectedIndex"
                                Value="1" />
                        <Style.Triggers>
                            <DataTrigger Binding="{Binding UserLoginViewModel.IsUserLoggedIn}"
                                         Value="True">
                                <Setter Property="SelectedIndex"
                                        Value="0" />
                            </DataTrigger>
                            <DataTrigger Binding="{Binding UserLoginViewModel.IsUserLoggedIn}"
                                         Value="Fase">
                                <Setter Property="SelectedIndex"
                                        Value="1" />
                            </DataTrigger>
                        </Style.Triggers>
                    </Style>
                </md:Transitioner.Style>

The animations works correctly in most cases but on some machines animation is triggered and not completed , so transition is stuck somewhere in between the change. The strange thing is that clicking on the UI causing the transition to start/continue. I dont have any other code to control the transition just the binding.

I am using the 2.4.1.1101 version of dll. Any ideas?

[jespersh]

@Keboo it is also reproducible in the demo. To trigger it (let’s call them TransitionerSlide A and TransitionerSlide B:

• Go forward - TransitionerSlide A begins sliding away and TransitionerSlide B begins to slide into view.
• Quickly before the transitions complete. Go back - TransitionerSlide B begins to slide away and TransitionerSlide A begins to slide into view.
• Now because TransitionerSlide A is still actually doing its sliding away transition, then on its completion then it

To do this in the demo, when you click the first transition, then quickly Tab then Enter. To fix the demo (first two slides) this seems to be required: https://github.com/jespersh/MaterialDesignInXamlToolkit/commit/f5af2c3a83fdb56c5413811aad093e52c11d0d64

It might be required to look through all the Completed handlers and disable them if it is suddenly the current slide.

[alex6dj]

Ok, the test project is ready.

Client.zip