XAML - Application Level

Defining a style on App level makes it accessible in entire application. Lets have a look at the same example; just put the styles in app.xaml file to make it accessible throughout the application. Given below is the XAML code in app.xaml.

<Application x:Class = "Styles.App" 
   xmlns = "http://schemas.microsoft.com/winfx/2006/xaml/presentation"
   xmlns:x = "http://schemas.microsoft.com/winfx/2006/xaml"
   StartupUri = "MainWindow.xaml">
	
   <Application.Resources>
      <Style TargetType = "TextBlock">
         <Setter Property = "FontSize" Value = "24" />
         <Setter Property = "Margin" Value = "5" />
         <Setter Property = "FontWeight" Value = "Bold" />
      </Style>
		
      <Style TargetType = "TextBox">
         <Setter Property = "HorizontalAlignment" Value = "Left" />
         <Setter Property = "FontSize" Value = "24" />
         <Setter Property = "Margin" Value = "5" />
         <Setter Property = "Width" Value = "200" />
         <Setter Property = "Height" Value = "40" />
      </Style>
   </Application.Resources>
	
</Application>

Here is the XAML code in which the text blocks and text boxes are created.

<Window x:Class = "Styles.MainWindow" 
   xmlns = "http://schemas.microsoft.com/winfx/2006/xaml/presentation"
   xmlns:x = "http://schemas.microsoft.com/winfx/2006/xaml" 
   Title = "MainWindow" Height = "350" Width = "604">
	
   <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 = "First Name: "/>
      <TextBox Name = "FirstName" Grid.Column = "1" />
      <TextBlock Text = "Last Name: " Grid.Row = "1" />
      <TextBox Name = "LastName" Grid.Column = "1" Grid.Row = "1" />
      <TextBlock Text = "Email: " Grid.Row = "2" />
      <TextBox Name = "Email" Grid.Column = "1" Grid.Row = "2"/>
   </Grid>
	
</Window>

When the above code is compiled and executed, it will produce the following output. Observe that the output remains identical.