稳扎稳打Silverlight(32) - 2.0Tip/Trick之MessageBox, Popup, 循环的几种实现方法, 动态变换主题

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[align=center]稳扎稳打Silverlight(32) - 2.0Tip/Trick之MessageBox, Popup, 循环的几种实现方法, 动态变换主题, 本地化(多语言), 响应鼠标双击事件[/align]

作者：webabcd

介绍
Silverlight 2.0 提示和技巧系列

MessageBox - MessageBox 的演示

Popup - Popup 弹窗口的演示

循环的几种实现方法 - DispatcherTimer 方式, Storyboard 方式, Timer 方式, CompositionTarget.Rendering 方式

动态变换主题 - 演示如何动态地变换主题

本地化(多语言) - 演示如何实现对多语言的支持

响应鼠标双击事件 - 响应并处理鼠标的双击事件

在线DEMO
http://webabcd.blog.51cto.com/1787395/342779

示例
1、演示 MessageBox
MessageBoxDemo.xaml

<UserControl x:Class="Silverlight20.Tip.MessageBoxDemo"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Grid x:Name="LayoutRoot" Background="White">
<StackPanel>
<Button x:Name="btnMessageBox" Content="MessageBox 演示" Click="btnMessageBox_Click" Margin="5" />
<TextBlock x:Name="lblResult" />
</StackPanel>
</Grid>
</UserControl>

MessageBoxDemo.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 Silverlight20.Tip


{


public partial class MessageBoxDemo : UserControl


{


public MessageBoxDemo()


{


InitializeComponent();


}




private void btnMessageBox_Click(object sender, RoutedEventArgs e)


{


MessageBoxResult result = MessageBox.Show("信息", "标题", MessageBoxButton.OKCancel);




lblResult.Text += result.ToString();


}


}


}

2、演示 Popup 弹出窗口
PopupDemo.xaml

<UserControl x:Class="Silverlight20.Tip.PopupDemo"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Grid x:Name="LayoutRoot" Background="White">
<Button x:Name="btnPopup" Content="弹出新窗口" Margin="5" Width="80" Height="40" Click="btnPopup_Click" HorizontalAlignment="Left" VerticalAlignment="Top" />
</Grid>
</UserControl>

PopupDemo.xaml.cs


/*


* 如果需要 Silverlight 宿主可以使用 HtmlPage.PopupWindow() 弹出新窗口，则需要如下参数


* <param name="allowHtmlPopupWindow" value="true" />


* 此参数：同域时默认为 ture ； 跨域时默认为 false


*/




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;




using System.Windows.Browser;




namespace Silverlight20.Tip


{


public partial class PopupDemo : UserControl


{


public PopupDemo()


{


InitializeComponent();


}




private void btnPopup_Click(object sender, RoutedEventArgs e)


{


// HtmlPopupWindowOptions - 需要弹出的新窗口的参数（如果浏览器是以标签的形式打开新窗口，则此参数无效）


HtmlPopupWindowOptions opt = new HtmlPopupWindowOptions();


opt.Left = 0;


opt.Top = 0;


opt.Width = 320;


opt.Height = 240;




// HtmlPage.IsPopupWindowAllowed - 指定 Silverlight 宿主是否可以使用 HtmlPage.PopupWindow() 来弹出新的浏览器窗口


// HtmlPage.PopupWindow() - 弹出新窗口


if (true == HtmlPage.IsPopupWindowAllowed)


HtmlPage.PopupWindow(new Uri("http://webabcd.cnblogs.com/", UriKind.Absolute), "newWindow", opt);


}


}


}

3、做循环程序的几种实现方法
LoopsDemo.xaml

<UserControl x:Class="Silverlight20.Tip.LoopsDemo"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Grid x:Name="LayoutRoot" Background="White">
<StackPanel>
<StackPanel Orientation="Horizontal" Margin="5">
<TextBlock Text="DispatcherTimer: " />
<TextBlock x:Name="resultDispatcherTimer" />
</StackPanel>
<StackPanel Orientation="Horizontal" Margin="5">
<TextBlock Text="Timer: " />
<TextBlock x:Name="resultTimer" />
</StackPanel>
<StackPanel Orientation="Horizontal" Margin="5">
<TextBlock Text="StoryBoard: " />
<TextBlock x:Name="resultStoryBoard" />
</StackPanel>
<StackPanel Orientation="Horizontal" Margin="5">
<TextBlock Text="CompositionTarget: " />
<TextBlock x:Name="resultCompositionTarget" />
</StackPanel>
</StackPanel>
</Grid>
</UserControl>

LoopsDemo.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;




using System.Windows.Threading;


using System.Threading;




namespace Silverlight20.Tip


{


public partial class LoopsDemo : UserControl


{


public LoopsDemo()


{


InitializeComponent();




this.Loaded += new RoutedEventHandler(LoopsDemo_Loaded);


}




void LoopsDemo_Loaded(object sender, RoutedEventArgs e)


{


DispatcherTimerDemo();


StoryboardDemo();


TimerDemo();


CompositionTargetDemo();


}






/// <summary>


/// DispatcherTimer - 在 UI 线程上循环（会受到 UI 线程的影响）


/// </summary>


private void DispatcherTimerDemo()


{


DispatcherTimer dTimer = new DispatcherTimer();


dTimer.Interval = TimeSpan.Zero;


dTimer.Tick += new EventHandler(dTimer_Tick);


dTimer.Start();


}




void dTimer_Tick(object sender, EventArgs e)


{


resultDispatcherTimer.Text = DateTime.Now.ToString("hh:mm:ss fff");


}






Storyboard _board;


/// <summary>


/// Storyboard - 在非 UI 线程上循环


/// </summary>


private void StoryboardDemo()


{


_board = new Storyboard();


_board.Duration = TimeSpan.Zero;


_board.Completed += new EventHandler(_board_Completed);


_board.Begin();


}




void _board_Completed(object sender, EventArgs e)


{


resultStoryBoard.Text = DateTime.Now.ToString("hh:mm:ss fff");


_board.Begin();


}






Timer _timer;


/// <summary>


/// Timer - 在非 UI 线程上循环


/// </summary>


private void TimerDemo()


{


_timer = new Timer(_timer_CallBack, null, TimeSpan.Zero, TimeSpan.Zero);


}




private void _timer_CallBack(object state)


{


this.Dispatcher.BeginInvoke(() =>


{


resultTimer.Text = DateTime.Now.ToString("hh:mm:ss fff");


});


_timer.Change(TimeSpan.Zero, TimeSpan.Zero);


}






/// <summary>


/// CompositionTarget.Rendering - 每呈现 1 帧都会触发此事件（相当于 Flash 的 Event.ENTER_FRAME）


/// </summary>


private void CompositionTargetDemo()


{


CompositionTarget.Rendering += new EventHandler(CompositionTarget_Rendering);


}




void CompositionTarget_Rendering(object sender, EventArgs e)


{


resultCompositionTarget.Text = DateTime.Now.ToString("hh:mm:ss fff");


}


}


}

4、动态变换主题(以 Toolkit 中的主题为例，引用 System.Windows.Controls.Theming.Toolkit.dll 和需要用到的相关主题文件)
ThemeDemo.xaml

<UserControl x:Class="Silverlight20.Tip.ThemeDemo"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Grid x:Name="LayoutRoot" Background="White">
<Button Content="ExpressionDark 样式" Width="120" Height="40" VerticalAlignment="Top" HorizontalAlignment="Left" Margin="5" Click="Button_Click"></Button>
</Grid>
</UserControl>

<!--

在 xaml 文件中声明的方式使用主题

<UserControl x:Class="Silverlight20.Tip.ThemeDemo"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:myTheme="clr-namespace:System.Windows.Controls.Theming;assembly=System.Windows.Controls.Theming.Toolkit">
<Grid x:Name="LayoutRoot" Background="White"
myTheme:ImplicitStyleManager.ApplyMode="Auto"
myTheme:ImplicitStyleManager.ResourceDictionaryUri="/Silverlight20;component/Theme/System.Windows.Controls.Theming.ExpressionDark.xaml"
>
<Button Content="ExpressionDark 样式" Width="120" Height="40" VerticalAlignment="Top" HorizontalAlignment="Left" Margin="5"></Button>
</Grid>
</UserControl>
-->

ThemeDemo.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;




using System.Windows.Controls.Theming;




namespace Silverlight20.Tip


{


public partial class ThemeDemo : UserControl


{


public ThemeDemo()


{


InitializeComponent();


}




private void Button_Click(object sender, RoutedEventArgs e)


{


// 设置主题的路径并将其赋值给需要使用该主题的控件


Uri uri = new Uri("/Silverlight20;component/Theme/System.Windows.Controls.Theming.ExpressionDark.xaml", UriKind.Relative);


ImplicitStyleManager.SetResourceDictionaryUri(LayoutRoot, uri);




// 设置主题的应用模式后，将主题应用到指定的控件，此控件内的所用控件都将使用该主题


ImplicitStyleManager.SetApplyMode(LayoutRoot, ImplicitStylesApplyMode.Auto);


ImplicitStyleManager.Apply(LayoutRoot);


}


}


}

5、演示如何实现本地化（多语言的支持）
LocalizationDemo.xaml

<UserControl x:Class="Silverlight20.Tip.LocalizationDemo"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:res="clr-namespace:Silverlight20.Resource">
<StackPanel Orientation="Vertical">

<StackPanel Margin="5">
<TextBlock Text="姓名: " />
<TextBlock x:Name="lblName" />
<TextBlock Text="年龄: " />
<TextBlock x:Name="lblAge" />
</StackPanel>

<!--通过声明的方式调用指定的本地化资源-->
<StackPanel.Resources>
<res:Localization x:Name="myRes" />
</StackPanel.Resources>
<StackPanel Margin="5">
<TextBlock Text="姓名: " />
<TextBlock Text="{Binding Name, Source={StaticResource myRes}}" />
<TextBlock Text="年龄: " />
<TextBlock Text="{Binding Age, Source={StaticResource myRes}}" />
</StackPanel>

</StackPanel>
</UserControl>

LocalizationDemo.xaml.cs


/*


* 配置本地化资源，如本例中需要添加 Localization.resx, Localization.zh-CN.resx 和 Localization.en-US.resx文件


* 要在资源文件中设置好相应的 Name 和 Value


* 本例中，要把 Silverlight20.Resource.Localization 类及其构造函数的访问级别手动修改为 Public


* 打开项目文件，本例为 Silverlight20.csproj，对需要支持的本地化资源做配置，本例为 <SupportedCultures>zh-CN;en-US</SupportedCultures>


* 具体如何实现本地化，可以查 MSDN 中的 CultureInfo


* 如何指定需要调用的本地化资源：在 object 的 param 中指定；在 Application_Startup 中指定


*/




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 Silverlight20.Tip


{


public partial class LocalizationDemo : UserControl


{


public LocalizationDemo()


{


InitializeComponent();




this.Loaded += new RoutedEventHandler(LocalizationDemo_Loaded);


}




void LocalizationDemo_Loaded(object sender, RoutedEventArgs e)


{


// 通过编程的方式调用指定的本地化资源


lblName.Text = Resource.Localization.Name;


lblAge.Text = Resource.Localization.Age;


}


}


}

在 Application 中指定 Culture

private void Application_Startup(object sender, StartupEventArgs e)
{
// 通过如下方法来实现本地化（指定资源）
CultureInfo culture = new CultureInfo("zh-CN");
System.Threading.Thread.CurrentThread.CurrentCulture = culture;
System.Threading.Thread.CurrentThread.CurrentUICulture = culture;

this.RootVisual = new Page();
}

在 object 标记中指定 Culture

<!--演示如何在 Silverlight 中实现本地化-->
<!--通过为 object 标记设置如下参数来实现本地化（指定资源）-->
<param name="culture" value="en-US" />
<param name="uiculture" value="en-Us" />

6、响应并处理鼠标的双击事件
DoubleClick.xaml

<UserControl x:Class="Silverlight20.Tip.DoubleClick"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Grid x:Name="LayoutRoot" Background="White">
<StackPanel>
<Button x:Name="btn" Content="Double Click Me" Margin="5" Click="btn_Click" />
<TextBox x:Name="result" Margin="5" />
</StackPanel>
</Grid>
</UserControl>

DoubleClick.xaml.cs


/*


* 根据 DispatcherTimer 是否为启动状态判断在某一时间段内是否按了两次鼠标左键


* 第一按鼠标左键则启动 DispatcherTimer，双击或者到了间隔时间则停止 DispatcherTimer


* 每次按键，如果 DispatcherTimer 为启动状态，即为双击


*/




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;




using System.Windows.Threading;




namespace Silverlight20.Tip


{


public partial class DoubleClick : UserControl


{


DispatcherTimer _dTimer;




public DoubleClick()


{


InitializeComponent();




this.Loaded += new RoutedEventHandler(DoubleClick_Loaded);


}




void DoubleClick_Loaded(object sender, RoutedEventArgs e)


{


_dTimer = new DispatcherTimer();


_dTimer.Interval = TimeSpan.FromMilliseconds(300);


_dTimer.Tick += new EventHandler(_dTimer_Tick);


}




private void btn_Click(object sender, RoutedEventArgs e)


{


if (_dTimer.IsEnabled)


{


result.Text += "双击";


_dTimer.Stop();


}


else


{


_dTimer.Start();


}


}




void _dTimer_Tick(object sender, EventArgs e)


{


_dTimer.Stop();


}


}


}

OK
[源码下载]