<!-- Basic badge on a button -->
<Button Width="100" Height="50" Content="Inbox">
    <notification:SfBadge.Badge>
        <notification:SfBadge 
            Content="10" 
            Fill="Success"
            Shape="Oval"
            x:Name="badge"/>
    </notification:SfBadge.Badge>
</Button>

// C# equivalent
SfBadge sfBadge = new SfBadge();
sfBadge.Name = "badge";
sfBadge.Content = "10";
sfBadge.Fill = BadgeFill.Success;
sfBadge.Shape = BadgeShape.Oval;

Button button = new Button();
button.Width = 100;
button.Height = 50;
button.Content = "Inbox";

SfBadge.SetBadge(button, sfBadge);

<!-- Top-right corner (default) -->
<notification:SfBadge 
    HorizontalAlignment="Right" 
    VerticalAlignment="Top" 
    Content="5"/>

<!-- Bottom-left corner -->
<notification:SfBadge 
    HorizontalAlignment="Left" 
    VerticalAlignment="Bottom" 
    Content="3"/>

<notification:SfBadge 
    AnimationType="Scale" 
    Content="{Binding UnreadCount}"
    Fill="Error"/>

<notification:SfBadge 
    Fill="Information"
    Shape="Ellipse"
    FontSize="16"
    FontStyle="Italic"
    Content="NEW"/>

<ListView ItemsSource="{Binding MailItems}">
    <ListView.ItemTemplate>
        <DataTemplate>
            <Grid>
                <TextBlock Text="{Binding ItemName}"/>
                <notification:SfBadge 
                    Content="{Binding UnreadCount}"
                    Visibility="{Binding HasMessages, Converter={StaticResource BoolToVisibilityConverter}}"
                    Shape="Oval"/>
            </Grid>
        </DataTemplate>
    </ListView.ItemTemplate>
</ListView>