<Controls:MetroWindow 
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"		
xmlns:Controls="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
xmlns:iconPacks="http://metro.mahapps.com/winfx/xaml/iconpacks" 
Title="Chapitre 11 - Diaog validation" 
Width="400" Height="300" ResizeMode="NoResize"
BorderBrush="RoyalBlue" BorderThickness="1">
		
		
    <Window.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <!-- Create Metro Style  -->
                <ResourceDictionary Source=".\resources\Icons.xaml" />
                <ResourceDictionary Source=".\resources\custom.xaml" /> 
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Fonts.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Colors.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/Cobalt.xaml"/>
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/BaseLight.xaml" />
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Window.Resources>		

		
		
    <Grid Background="white">       
        <StackPanel  VerticalAlignment="Center" HorizontalAlignment="Center">
			<Button Name="Cliquez" Height="23" Width="100" Content="Cliquez"/>
        </StackPanel>        
    </Grid>
</Controls:MetroWindow>        