Using a new font family in a Silverlight application is fairly simple. There are several ways for doing it. The simplest of them is adding the TTF file to our application (simple drag & drop when using the Visual Studio IDE) and referring it from within the XAML file.
<UserControl x:Class="SilverlightApplication15.MainPage"
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"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="400">
<Grid x:Name="LayoutRoot" Background="White">
<TextBlock FontSize="24" FontFamily="Foo.ttf#Foo">We Love Silverlight!</TextBlock>
</Grid>
</UserControl>
The following video clip shows how does it work.
