I have the following button style. My question, how can I change the textblock's text colour when the button is not enabled? I tried setting "ButtonTextBlock" value through the storyboard but it cannot seem to access it. Thanks.
<Style TargetType="{x:Type Button}">
<Setter Property="ContentTemplate">
<Setter.Value>
<DataTemplate>
<Viewbox>
<!-- TODO change this textblocks colour depending on IsEnabled -->
<TextBlock x:Name="ButtonTextBlock" HorizontalAlignment="Center" VerticalAlignment="Stretch" Margin="0,2,0,2">
<ContentPresenter Content="{TemplateBinding Content}" >
</ContentPresenter>
</TextBlock>
</Viewbox>
</DataTemplate>
</Setter.Value>
</Setter>
<Setter Property="BorderThickness" Value="1"></Setter>
<Setter Property="BorderBrush" Value="{StaticResource ButtonBorderBrush}" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="0">
<Border.Background>
<LinearGradientBrush StartPoint="0,0" EndPoint="0,1" >
<GradientStop x:Name="BackgroundGradientStop1" Offset="0" Color="{StaticResource AlbumScrollButtonNormal1}" />
<GradientStop x:Name="BackgroundGradientStop2" Offset="1" Color="{StaticResource AlbumScrollButtonNormal2}" />
</LinearGradientBrush>
</Border.Background>
<ContentPresenter Margin="{TemplateBinding Padding}"
Content="{TemplateBinding Content}"
ContentTemplate="{TemplateBinding ContentTemplate}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Border>
<ControlTemplate.Triggers>
<!-- Button Disabled -->
<Trigger Property="IsEnabled" Value="False">
<!-- Disabled -->
<Trigger.EnterActions>
<BeginStoryboard>
<Storyboard x:Name="ButtonDisabled">
<ColorAnimation Storyboard.TargetName="BackgroundGradientStop1"
Storyboard.TargetProperty="Color"
To="{StaticResource AlbumScrollButtonDisabled1}"
Duration="0" />
<ColorAnimation Storyboard.TargetName="BackgroundGradientStop2"
Storyboard.TargetProperty="Color"
To="{StaticResource AlbumScrollButtonDisabled2}"
Duration="0" />
</Storyboard>
</BeginStoryboard>
</Trigger.EnterActions>
<!-- Enabled -->
<Trigger.ExitActions>
<BeginStoryboard>
<Storyboard x:Name="ButtonEnabled">
<ColorAnimation Storyboard.TargetName="BackgroundGradientStop1"
Storyboard.TargetProperty="Color"
To="{StaticResource AlbumScrollButtonNormal1}"
Duration="0" />
<ColorAnimation Storyboard.TargetName="BackgroundGradientStop2"
Storyboard.TargetProperty="Color"
To="{StaticResource AlbumScrollButtonNormal2}"
Duration="0" />
</Storyboard>
</BeginStoryboard>
</Trigger.ExitActions>
</Trigger>
<!-- Mouse Over and Mouse leave -->
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsEnabled" Value="True" />
<Condition Property="IsMouseOver" Value="True" />
</MultiTrigger.Conditions>
<!-- Mouse Over -->
<MultiTrigger.EnterActions>
<BeginStoryboard>
<Storyboard x:Name="MouseOverAnimation">
<ColorAnimation Storyboard.TargetName="BackgroundGradientStop1"
Storyboard.TargetProperty="Color"
To="{StaticResource AlbumScrollButtonMouseOver1}"
Duration="0:0:0:0.1" />
<ColorAnimation Storyboard.TargetName="BackgroundGradientStop2"
Storyboard.TargetProperty="Color"
To="{StaticResource AlbumScrollButtonMouseOver2}"
Duration="0:0:0:0.1" />
</Storyboard>
</BeginStoryboard>
</MultiTrigger.EnterActions>
<!-- Mouse Leave -->
<MultiTrigger.ExitActions>
<BeginStoryboard>
<Storyboard x:Name="MouseLeaveAnimation" FillBehavior="Stop">
<ColorAnimation Storyboard.TargetName="BackgroundGradientStop1"
Storyboard.TargetProperty="Color"
To="{StaticResource AlbumScrollButtonNormal1}"
Duration="0:0:0:0.1" />
<ColorAnimation Storyboard.TargetName="BackgroundGradientStop2"
Storyboard.TargetProperty="Color"
To="{StaticResource AlbumScrollButtonNormal2}"
Duration="0:0:0:0.1" />
</Storyboard>
</BeginStoryboard>
</MultiTrigger.ExitActions>
</MultiTrigger>
<!-- Mouse Press -->
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsEnabled" Value="True" />
<Condition Property="IsPressed" Value="True" />
</MultiTrigger.Conditions>
<!-- Mouse Down -->
<MultiTrigger.EnterActions>
<BeginStoryboard>
<Storyboard x:Name="MouseDownAnimation" >
<ColorAnimation Storyboard.TargetName="BackgroundGradientStop1"
Storyboard.TargetProperty="Color"
To="{StaticResource AlbumScrollButtonPressed1}"
Duration="0:0:0:0.1" />
<ColorAnimation Storyboard.TargetName="BackgroundGradientStop2"
Storyboard.TargetProperty="Color"
To="{StaticResource AlbumScrollButtonPressed2}"
Duration="0:0:0:0.1" />
</Storyboard>
</BeginStoryboard>
</MultiTrigger.EnterActions>
<!-- Mouse Up -->
<MultiTrigger.ExitActions>
<BeginStoryboard>
<Storyboard x:Name="MouseUpAnimation" FillBehavior="Stop">
<ColorAnimation Storyboard.TargetName="BackgroundGradientStop1"
Storyboard.TargetProperty="Color"
To="{StaticResource AlbumScrollButtonMouseOver1}"
Duration="0:0:0:0.1" />
<ColorAnimation Storyboard.TargetName="BackgroundGradientStop2"
Storyboard.TargetProperty="Color"
To="{StaticResource AlbumScrollButtonMouseOver2}"
Duration="0:0:0:0.1" />
</Storyboard>
</BeginStoryboard>
</MultiTrigger.ExitActions>
</MultiTrigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
You can animate Foreground.Color of the Button when IsEnabled=False. Also there is no need for ContentTemplate in your Style. You can move ViewBox to ControlTemplate and remove ContentTemplate
<ControlTemplate TargetType="{x:Type Button}">
<Border ...>
<Viewbox>
<ContentPresenter ... />
</Viewbox>
</Border>
<ControlTemplate.Triggers>
<!-- Button Disabled -->
<Trigger Property="IsEnabled" Value="False">
<!-- Disabled -->
<Trigger.EnterActions>
<BeginStoryboard>
<Storyboard x:Name="ButtonDisabled">
<ColorAnimation Storyboard.TargetProperty="Foreground.Color" To="Green" Duration="0:0:0.1"/>
</Storyboard>
<!--other animations-->
</BeginStoryboard>
</Trigger.EnterActions>
</Trigger>
<!--other triggers-->
</ControlTemplate.Triggers>
</ControlTemplate>