Here you can see we are giving style to wpf controls in design page only . You will get complete idea about static style in wpf applications. Let's see,
Main window
Main window
<Window x:Class="StyleDemo.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<Style x:Key="textblock_style" TargetType="TextBlock">
<Setter Property="HorizontalAlignment" Value="Right"></Setter>
<Setter Property="Margin" Value="5"></Setter>
</Style>
<Style x:Key="textbox_style" TargetType="TextBox">
<Setter Property="HorizontalAlignment" Value="Left"></Setter>
<Setter Property="Margin" Value="5"></Setter>
<Setter Property="Width" Value="150"></Setter>
</Style>
</Window.Resources>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="2*"/>
</Grid.ColumnDefinitions>
<TextBlock Text="Name" Grid.Row="0" Grid.Column="0" Style="{StaticResource textblock_style}"></TextBlock>
<TextBox Grid.Row="0" Grid.Column="1" Style="{StaticResource textbox_style}"></TextBox>
<TextBlock Text="Address" Grid.Row="1" Grid.Column="0" Style="{StaticResource textblock_style}"></TextBlock>
<TextBox Grid.Row="1" Grid.Column="1" Style="{StaticResource textbox_style}"></TextBox>
<TextBlock Text="description" Grid.Row="2" Grid.Column="0" Style="{StaticResource textblock_style}"></TextBlock>
<TextBox Grid.Row="2" Grid.Column="1" Style="{StaticResource textbox_style}"></TextBox>
</Grid>
</Window>
Let's see output