Change foreground of a textblock in a ToggleButton - wpf

Question

I'm new to WPF and I'm totaly stuck with a foreground who don't want to update :#
I wan't to make a radiobutton with a togglebutton behavior (that's ok), but i want to wrap the text inside this button.
If the content is defined in the toggleButton, my foreground become white. But if i use a Textblock inside the togglebutton (with a wrap), my foreground don't want to change.
My two buttons in XAML
<RadioButton GroupName="line1" Grid.Row="1" Grid.Column="1" Style="{DynamicResource ToggleButtonStyle1}">
<RadioButton.Content>
<TextBlock TextWrapping="Wrap" >I can wrap but ...</TextBlock>
</RadioButton.Content>
</RadioButton>
<RadioButton GroupName="line0" Grid.Row="1" Grid.Column="2" Style="{DynamicResource ToggleButtonStyle1}" Content="i can't Wrap and it's not good"/>
And my ControlTemplate in app.xaml
<ControlTemplate TargetType="{x:Type ToggleButton}">
<Border x:Name="border" BorderThickness="1" Background="{TemplateBinding Background}" SnapsToDevicePixels="true">
<Border.BorderBrush>
<SolidColorBrush Color="{DynamicResource BleuClair}"/>
</Border.BorderBrush>
<ContentPresenter x:Name="contentPresenter" Focusable="False" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="Button.IsDefaulted" Value="true">
<Setter Property="Background" TargetName="border" Value="{StaticResource Button.Static.Background}"/>
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.Static.Border}"/>
<Setter Property="TextElement.Foreground" TargetName="contentPresenter" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="Background" TargetName="border" Value="{StaticResource Button.MouseOver.Background}"/>
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.MouseOver.Border}"/>
<Setter Property="TextElement.Foreground" TargetName="contentPresenter" Value="White"/>
</Trigger>
<Trigger Property="IsPressed" Value="true">
<Setter Property="Background" TargetName="border" Value="{StaticResource Button.Pressed.Background}"/>
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.Pressed.Border}"/>
<Setter Property="TextElement.Foreground" TargetName="contentPresenter" Value="White"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Background" TargetName="border" Value="{StaticResource Button.Disabled.Background}"/>
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.Disabled.Border}"/>
<Setter Property="TextElement.Foreground" TargetName="contentPresenter" Value="White"/>
</Trigger>
<Trigger Property="IsChecked" Value="true">
<Setter Property="Background" TargetName="border" Value="{StaticResource Button.Pressed.Background}"/>
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.Pressed.Border}"/>
<Setter Property="TextElement.Foreground" TargetName="contentPresenter" Value="White"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
I'm not sure if i need to update the ControlTemplate or the ContentPresenter to add "Something" about the textblock or if i need to update the XAML to make a binding to this custom style.
Thank you for your time :)

Answer 1

I find (finally :'( ) my solution.
I think it can be done in the ControlTemplate, but i don't know how ^^
I had this :
<RadioButton GroupName="line1" Grid.Row="1" Grid.Column="1" Style"{DynamicResource ToggleButtonStyle1}">
<TextBlock TextWrapping="Wrap" >I can wrap but ...</TextBlock>
</RadioButton>
And to apply my foreground property (from the radioButton), i simply add a binding to the contentPresenter.
<RadioButton GroupName="line1" Grid.Row="1" Grid.Column="1" Style="{DynamicResource ToggleButtonStyle1}">
<TextBlock Foreground="{Binding Path=(TextElement.Foreground), RelativeSource={RelativeSource AncestorType=ContentPresenter}}"
TextWrapping="Wrap" >I can wrap but ...</TextBlock>
</RadioButton>

Answer 2

It sounds like what you're looking for is an event that will toggle the foreground color when clicked. Try setting up your XAML like this:
<RadioButton Click="RadioButton_Clicked" GroupName="line1" Grid.Row="1" Grid.Column="1" Style="{DynamicResource ToggleButtonStyle1}">
<TextBlock TextWrapping="Wrap" >Text here</TextBlock>
</RadioButton>
Now in your code, handle the event with a method
private void RadioButton_Clicked(object sender, RoutedEventArgs e)
{
// get an object of the button
RadioButton button = (RadioButton)sender;
// access the textblock to change the foreground
TextBlock text = (TextBlock)button.Child;
// change the foreground to white
text.Foreground = Brushes.White;
}
Hopefully this helps or is close to what you are looking for!