I have that thing in App.xaml
<Application.Resources>
<Style TargetType="{x:Type Window}">
<Setter Property="FontFamily" Value="Consolas" />
</Style>
<Style TargetType="{x:Type UserControl}">
<Setter Property="FontFamily" Value="Consolas" />
</Style>
</Application.Resources>
In theory all fonts now should be changed. In practice they are not. What am I doing wrong?
Answer
Set a style in ctor of MainWindow which inherits from Window.
public MainWindow()
{
InitializeComponent();
Style = (Style)FindResource(typeof(Window));
....
}
Similar for UserControl Style = (Style)FindResource(typeof(UserControl));