Utilisez ce code pour différents styles pour différents boutons ou tout autre
<Window x:Class="WpfApplication1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
HorizontalAlignment="Left"
VerticalAlignment="Top">
<Window.Resources>
**<Style x:Key="a" TargetType="{x:Type TextBlock}">
<Setter Property="FontFamily" Value="Verdana" />
<Setter Property="FontSize" Value="50"/>
<Setter Property="Background" Value="Indigo"/>
</Style>
<Style x:Key="b" TargetType="{x:Type TextBlock}">
<Setter Property="FontFamily" Value="Arial"/>
<Setter Property="FontSize" Value="16"/>
</Style>
<Style x:Key="c" TargetType="{x:Type Button}">
<Setter Property="FontFamily" Value="TimesNewRoman" />
<Setter Property="FontSize" Value="50"/>
<Setter Property="Background" Value="Green"/>
</Style>
</Window.Resources>
<Grid>
<TextBlock Margin="26,41,39,0" Style="{StaticResource a}" Height="100" VerticalAlignment="Top">TextBlock with Style1</TextBlock>
<TextBlock Margin="26,77,39,0" Height="32" VerticalAlignment="Top">TextBlock with no Style</TextBlock>
<TextBlock Margin="26,105,67,96" Style="{StaticResource b}">TextBlock with Style2</TextBlock>
<StackPanel Orientation="Horizontal" VerticalAlignment="Top" Margin="26,170,-26,0">
<Button Style="{StaticResource c}">
<Bold >Styles</Bold></Button>
<Button Style="{StaticResource c}">are</Button>
<Button Style="{StaticResource c}">cool</Button>
</StackPanel>
</Grid>
ici i déclarant le style à la fois pour le texteBloc et le bouton.Utilisez celui-ci ..
Merci beaucoup BEN – Amit