WPF - ToggleButton Template Trigger stop firing after first call - wpf

Question

I have custom template for ToggleButton with triggers targeted for providing clear visual difference between Checked and Unchecked state.
Main concept:
Trigger 1. When Togglebuton is Unchecked and MouseOver = false: FontSize should be 13, FontWeight - Normal.
Trigger 2. When Togglebuton is Unchecked and MouseOver = true: FontSize should be 14, FontWeight - Normal.
Trigger 3. When Togglebuton is Checked: FontSize should be 15, FontWeight - Bold.
Everything is working fine, but after first toggleButton check/uncheck sequence
trigger 2 stops to fire and ToggleButton does not change appearence on MouseOver = true any more.
Here is my actual XAML.
<Style TargetType="{x:Type ToggleButton}" x:Key="DefaultToggleButtonStyle">
<Style.Resources>
<Style x:Key="ButtonFocusVisual">
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate>
<Rectangle Margin="2"
SnapsToDevicePixels="true"
Stroke="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"
StrokeThickness="1"
StrokeDashArray="1 2" />
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Style.Resources>
<Setter Property="FocusVisualStyle" Value="{StaticResource ButtonFocusVisual}" />
<Setter Property="Background" Value="{DynamicResource ButtonColor}" />
<Setter Property="Foreground" Value="{DynamicResource EditAreaColor}" />
<Setter Property="HorizontalContentAlignment" Value="Center" />
<Setter Property="VerticalContentAlignment" Value="Center" />
<Setter Property="Padding" Value="1" />
<Setter Property="Cursor" Value="Hand" />
<Setter Property="UseLayoutRounding" Value="True" />
<Setter Property="FontSize" Value="13" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ToggleButton}">
<ControlTemplate.Resources>
<Style TargetType="Border" x:Key="MainBorderStyle">
<Setter Property="SnapsToDevicePixels" Value="True" />
<Setter Property="CornerRadius" Value="1" />
<Setter Property="UseLayoutRounding" Value="True" />
</Style>
</ControlTemplate.Resources>
<Grid>
<Border Background="Black" Opacity="0.5">
<Border.Effect>
<BlurEffect Radius="7" />
</Border.Effect>
</Border>
<Border x:Name="upperSurfaceBorder" Background="{TemplateBinding Background}" Style="{StaticResource MainBorderStyle}">
<Border x:Name="mouserOverHl" Background="Transparent"
Style="{StaticResource MainBorderStyle}"
BorderThickness="0.5" BorderBrush="{StaticResource MainNormal}">
<ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
Margin="{TemplateBinding Padding}"
RecognizesAccessKey="True"
SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />
</Border>
</Border>
<Border Background="Transparent" Style="{StaticResource MainBorderStyle}" x:Name="disabledOverlay" />
</Grid>
<ControlTemplate.Triggers>
<!--MouseOver-->
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsMouseOver" Value="True"/>
<Condition Property="IsChecked" Value="False"/>
</MultiTrigger.Conditions>
<MultiTrigger.EnterActions>
<BeginStoryboard>
<Storyboard TargetProperty="FontSize">
<DoubleAnimation To="14" Duration="0:0:.3">
<DoubleAnimation.EasingFunction>
<CubicEase EasingMode="EaseOut" />
</DoubleAnimation.EasingFunction>
</DoubleAnimation>
</Storyboard>
</BeginStoryboard>
</MultiTrigger.EnterActions>
<MultiTrigger.ExitActions>
<BeginStoryboard>
<Storyboard TargetProperty="FontSize">
<DoubleAnimation To="13" Duration="0:0:.3">
<DoubleAnimation.EasingFunction>
<CubicEase EasingMode="EaseOut" />
</DoubleAnimation.EasingFunction>
</DoubleAnimation>
</Storyboard>
</BeginStoryboard>
</MultiTrigger.ExitActions>
</MultiTrigger>
<!--IsChecked-->
<Trigger Property="ToggleButton.IsChecked" Value="true">
<Trigger.Setters>
<Setter Property="Background" Value="{StaticResource MainVeryDark}"/>
</Trigger.Setters>
<Trigger.EnterActions>
<BeginStoryboard>
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="FontWeight">
<DiscreteObjectKeyFrame KeyTime="0:0:0">
<DiscreteObjectKeyFrame.Value>
<FontWeight>Bold</FontWeight>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
<BeginStoryboard>
<Storyboard TargetProperty="(ToggleButton.Background).(SolidColorBrush.Color)">
<ColorAnimation Duration="0:0:0.1" To="#002f67">
<ColorAnimation.EasingFunction>
<CubicEase EasingMode="EaseOut" />
</ColorAnimation.EasingFunction>
</ColorAnimation>
</Storyboard>
</BeginStoryboard>
<BeginStoryboard>
<Storyboard TargetProperty="FontSize">
<DoubleAnimation To="15" Duration="0:0:0">
<DoubleAnimation.EasingFunction>
<CubicEase EasingMode="EaseOut" />
</DoubleAnimation.EasingFunction>
</DoubleAnimation>
</Storyboard>
</BeginStoryboard>
</Trigger.EnterActions>
<Trigger.ExitActions>
<BeginStoryboard>
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="FontWeight">
<DiscreteObjectKeyFrame KeyTime="0:0:0">
<DiscreteObjectKeyFrame.Value>
<FontWeight>Normal</FontWeight>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
<BeginStoryboard>
<Storyboard TargetProperty="FontSize">
<DoubleAnimation To="13" Duration="0:0:0">
<DoubleAnimation.EasingFunction>
<CubicEase EasingMode="EaseOut" />
</DoubleAnimation.EasingFunction>
</DoubleAnimation>
</Storyboard>
</BeginStoryboard>
</Trigger.ExitActions>
</Trigger>
<!--Pressed-->
<Trigger Property="IsPressed" Value="True">
<Trigger.EnterActions>
<BeginStoryboard>
<Storyboard TargetName="upperSurfaceBorder" TargetProperty="Margin">
<ThicknessAnimation Duration="0:0:0.1" To="2 2 -2 -2">
<ThicknessAnimation.EasingFunction>
<CubicEase EasingMode="EaseOut" />
</ThicknessAnimation.EasingFunction>
</ThicknessAnimation>
</Storyboard>
</BeginStoryboard>
</Trigger.EnterActions>
<Trigger.ExitActions>
<BeginStoryboard>
<Storyboard TargetName="upperSurfaceBorder"
TargetProperty="Margin">
<ThicknessAnimation Duration="0:0:0.1"
To="0 0 0 0">
<ThicknessAnimation.EasingFunction>
<CubicEase EasingMode="EaseOut" />
</ThicknessAnimation.EasingFunction>
</ThicknessAnimation>
</Storyboard>
</BeginStoryboard>
</Trigger.ExitActions>
</Trigger>
<!--Disabled-->
<Trigger Property="IsEnabled" Value="False">
<Trigger.EnterActions>
<BeginStoryboard>
<Storyboard>
<ColorAnimation Duration="0:0:0.3" Storyboard.TargetName="disabledOverlay"
Storyboard.TargetProperty="Background.Color" To="#55FFFFFF">
<ColorAnimation.EasingFunction>
<CubicEase EasingMode="EaseOut" />
</ColorAnimation.EasingFunction>
</ColorAnimation>
<DoubleAnimation Duration="0:0:0.3" Storyboard.TargetProperty="Foreground.Opacity" To="0.6" />
</Storyboard>
</BeginStoryboard>
</Trigger.EnterActions>
<Trigger.ExitActions>
<BeginStoryboard>
<Storyboard>
<ColorAnimation Duration="0:0:0.3" To="Transparent" Storyboard.TargetName="disabledOverlay" Storyboard.TargetProperty="Background.Color">
<ColorAnimation.EasingFunction>
<CubicEase EasingMode="EaseOut" />
</ColorAnimation.EasingFunction>
</ColorAnimation>
<DoubleAnimation Duration="0:0:0.3" Storyboard.TargetProperty="Foreground.Opacity" To="1" />
</Storyboard>
</BeginStoryboard>
</Trigger.ExitActions>
<Setter Property="Visibility" Value="Visible" TargetName="disabledOverlay" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Any suggestions what's wrong?
Thanks in advance!

Answer 1

Your Main problem is in Trigger 3. I think EnterActions and ExitActions have not feeling good with IsChecked Property. I don't know why.
you must take another way to writing this trigger.

Answer 2

Well, as RezaNoei suggested, the problem was in ExitActions of Trigger 3. I solved this issue by removing of "To" property of font's size animation. This decision was inspired by this topic.