Xaml Inherited StaticResource Styles - xaml

Question

I am using Style Resources for my buttons.
Just wondering what is better to do.
<StackPanel Grid.Row="1">
<Button Content="Create Event" Click="CreateEvent_Click" Style="{StaticResource NavigationButton}" />
<Button Content="Search Event" Click="SearchEvent_Click" Style="{StaticResource NavigationButton}" />
<Button Content="My Events" Click="MyEvents_Click" Style="{StaticResource NavigationButton}" />
</StackPanel>
So, if I have many buttons I will need to write always Style="{StaticResource NavigationButton}"
Or to choose this one:
<StackPanel Grid.Row="1">
<StackPanel.Resources>
<Style TargetType="Button" BasedOn="{StaticResource NavigationButton}" />
</StackPanel.Resources>
<Button Content="Create Event" Click="CreateEvent_Click" />
<Button Content="Search Event" Click="SearchEvent_Click" />
<Button Content="My Events" Click="MyEvents_Click" />
</StackPanel>

Answer 1

Best is to put the styling in the App.xaml under App Resources. This is a better solution then on page because the resource will only by created once (instead of on multiple pages when reused).
Also, you can specify a target type like the following. This way you will not have to reference a certain style the way you did in your example. You just define your style here:
<Application.Resources>
<Style TargetType="{x:Type Button}">
<Setter Property="Background" Value="Black" />
<Setter Property="Foreground" Value="White" />
<Setter Property="Width" Value="80" />
<Setter Property="Margin" Value="10" />
</Style>
</Application.Resources>