<UserControl x:Class='SilverlightApplication3.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:DesignWidth='640'
d:DesignHeight='480'>
<Grid x:Name="LayoutRoot" Background="White">
<Grid.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="external.xaml" />
</ResourceDictionary.MergedDictionaries>
<Style x:Name="Title" TargetType="TextBlock">
<Setter Property="FontFamily" Value="Calibri" />
<Setter Property="FontSize" Value="15" />
<Setter Property="FontWeight" Value="Bold"/>
</Style>
<Style x:Name="MainTitle" TargetType="TextBlock" BasedOn="{StaticResource Title}">
<Setter Property="Foreground" Value="Blue" />
</Style>
<Style x:Name="SubTitle" TargetType="TextBlock" BasedOn="{StaticResource Title}">
<Setter Property="FontSize" Value="12" />
</Style>
<Style x:Name="DynamicTitle" TargetType="TextBlock" BasedOn="{StaticResource Title}">
<Setter Property="FontSize" Value="20" />
<Setter Property="Foreground" Value="Green"/>
</Style>
</ResourceDictionary>
</Grid.Resources>
<StackPanel>
<TextBlock Text="Title" Style="{StaticResource Title}" Margin="5"/>
<TextBlock Text="Main Title" Style="{StaticResource MainTitle}" Margin="5"/>
<TextBlock Text="Sub Title" Style="{StaticResource LargeTitle}" Margin="5"/>
<Button x:Name="button1" Click="button1_Click" Content="Toggle Style" Width="150"/>
<TextBlock x:Name="textBlock1" Text="Main Title" Style="{StaticResource MainTitle}" Margin="5"/>
</StackPanel>
</Grid>
</UserControl>
//File: Page.xaml.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
namespace SilverlightApplication3
{
public partial class MainPage : UserControl
{
private bool isToggle;
public MainPage()
{
InitializeComponent();
}
private void button1_Click(object sender, RoutedEventArgs e)
{
if (isToggle == false)
{
textBlock1.Style = LayoutRoot.Resources["DynamicTitle"] as Style;
}
else
{
textBlock1.Style = LayoutRoot.
Resources["MainTitle"] as Style;
}
isToggle = !isToggle;
}
}
}
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