Can I identify which routed event from the triggers that caused the property change from code in WPF?

Question

I have the below style trigger in the XAML, changing property based on a routed event which works properly.

        <Style.Triggers>
            <EventTrigger RoutedEvent="MouseDown">
                <BeginStoryboard>
                    <Storyboard>
                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background">
                            <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{StaticResource ThumbnailItemBackgroundSelected}"/>
                        </ObjectAnimationUsingKeyFrames>
                    </Storyboard>
                </BeginStoryboard>
                <BeginStoryboard>
                    <Storyboard>
                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush">
                            <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{StaticResource ThumbnailItemBorderSelected}"/>
                        </ObjectAnimationUsingKeyFrames>
                    </Storyboard>
                </BeginStoryboard>
            </EventTrigger>
            <EventTrigger RoutedEvent="MouseEnter">
                <BeginStoryboard>
                    <Storyboard>
                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background">
                            <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{StaticResource ThumbnailItemBackgroundMouseHover}"/>
                        </ObjectAnimationUsingKeyFrames>
                    </Storyboard>
                </BeginStoryboard>
                <BeginStoryboard>
                    <Storyboard>
                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush">
                            <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{StaticResource ThumbnailItemBorderMouseHover}"/>
                        </ObjectAnimationUsingKeyFrames>
                    </Storyboard>
                </BeginStoryboard>
            </EventTrigger>
        </Style.Triggers>

I would like to get which event that caused the property change in OnPropertyChanged , but I didn't get the details about it in the override event.

 protected override void OnPropertyChanged(DependencyPropertyChangedEventArgs e)
 {
     if(e.Property.Name == "Background") {}
 }

Can I Identify which routed event (MouseDown or MouseEnter) that caused the property change (ex. Background) from code in any way?

Answer 1

You might not get MouseEnter and MouseDown events using OnPropertyChanged. You should use MouseEnter and MouseDown events respectively and call your code inside these Events respectively. Like this : Below Input => is a TextBox

private void Input_MouseEnter(object sender, MouseEventArgs e){
Input.Text = "Mouse Entered";}

private void Input_MouseLeave(object sender, MouseEventArgs e){
Input.Text = "Mouse Left";}