稳扎稳打Silverlight(29) - 2.0Tip/Trick之Cookie, 自定义字体, 为程序传递参数, 自定义鼠标右键, 程序常用配置参数

<UserControl x:Class="Silverlight20.Tip.Cookie" 

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"    

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> 

        <StackPanel HorizontalAlignment="Left" Margin="5"> 



                <StackPanel Orientation="Horizontal" Margin="5"> 

                        <TextBlock Text="cookie-key: " /> 

                        <TextBox x:Name="txtKey" /> 

                </StackPanel> 



                <StackPanel Orientation="Horizontal" Margin="5"> 

                        <TextBlock Text="cookie-value: " /> 

                        <TextBox x:Name="txtValue" /> 

                </StackPanel> 



                <StackPanel Orientation="Horizontal" Margin="5"> 

                        <Button x:Name="btnSetCookie" Content="设置Cookie" Click="btnSetCookie_Click" /> 

                        <Button x:Name="btnGetCookie" Content="获取Cookie" Click="btnGetCookie_Click" /> 

                        <Button x:Name="btnDeleteCookie" Content="清除Cookie" Click="btnDeleteCookie_Click" /> 

                </StackPanel> 



                <TextBox x:Name="txtResult" Margin="5" /> 

                 

        </StackPanel> 

</UserControl>

Cookie.xaml.cs

/* 
关于使用 JavaScript 操作 Cookie 参看 
http://msdn.microsoft.com/en-us/library/ms533693(VS.85).aspx    
*/ 

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; 

using System.Text.RegularExpressions; 

 

namespace Silverlight20.Tip 

{ 

        public partial class Cookie : UserControl 

        { 

                public Cookie() 

                { 

                        InitializeComponent(); 

                } 

 

                /// <summary> 

                /// 设置 Cookie 

                /// </summary> 

                private void btnSetCookie_Click(object sender, RoutedEventArgs e) 

                { 

                        if (txtKey.Text.Trim() != "" && txtValue.Text.Trim() != "") 

                        { 

                                string expire = DateTime.Now.AddDays(1).ToString("R"); // RFC1123Pattern 日期格式 

                                string cookie = string.Format("{0}={1};expires={2}", 

                                        txtKey.Text.Trim(), 

                                        txtValue.Text.Trim(), 

                                        expire); 

 

                                // 通过 JavaScript 设置 Cookie 

                                // 如下语句等于在 JavaScript 中给 document.cookie 赋值 

                                HtmlPage.Document.SetProperty("cookie", cookie); 

                        } 

                } 

 

                /// <summary> 

                /// 获取 Cookie 

                /// </summary> 

                private void btnGetCookie_Click(object sender, RoutedEventArgs e) 

                { 

                        txtResult.Text = ""; 

 

                        // 通过 JavaScript 获取 Cookie 

                        // HtmlPage.Document.Cookies 就是 JavaScript 中的 document.cookie 

                        string[] cookies = Regex.Split(HtmlPage.Document.Cookies, "; "); 

 

                        foreach (var cookie in cookies) 

                        { 

                                string[] keyValue = cookie.Split('='); 

 

                                if (keyValue.Length == 2) 

                                { 

                                        txtResult.Text += keyValue[0] + " : " + keyValue[1]; 

                                        txtResult.Text += "\n"; 

                                } 

                        } 

                } 

 

                /// <summary> 

                /// 删除 Cookie 

                /// </summary> 

                private void btnDeleteCookie_Click(object sender, RoutedEventArgs e) 

                { 

                        string[] cookies = Regex.Split(HtmlPage.Document.Cookies, "; "); 

 

                        foreach (var cookie in cookies) 

                        { 

                                string[] keyValue = cookie.Split('='); 

 

                                if (keyValue.Length == 2) 

                                { 

                                        HtmlPage.Document.SetProperty("cookie", keyValue[0] + "=;" + DateTime.Now.AddDays(-1).ToString("R")); 

                                } 

                        } 

                } 

        } 

}

2、演示如何使用自定义字体
以使用华文行楷字体为例，先将字体文件做为资源型文件添加到项目里
CustomFont.xaml

<UserControl x:Class="Silverlight20.Tip.CustomFont" 

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"    

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> 

        <StackPanel HorizontalAlignment="Left" Margin="5"> 



                <TextBlock x:Name="lblMsg" Text="自定义字体" FontSize="50" /> 

                 

                <!--以声明的方式使用自定义字体--> 

                <!--FontFamily - 字体源地址#字体名称--> 

                <TextBlock Text="自定义字体" FontSize="50" FontFamily="/Silverlight20;component/Resource/STXINGKA.TTF#STXingkai" /> 



                <!--                         

                        资源型文件 - [/程序集名;component/路径] 

                        内容型文件 - [/路径] 

                --> 

        </StackPanel> 

</UserControl>

CustomFont.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.Resources; 

 

namespace Silverlight20.Tip 

{ 

        public partial class CustomFont : UserControl 

        { 

                public CustomFont() 

                { 

                        InitializeComponent(); 

 

                        this.Loaded += new RoutedEventHandler(CustomFont_Loaded); 

                } 

 

                void CustomFont_Loaded(object sender, RoutedEventArgs e) 

                { 

                        // 以编码的方式使用自定义字体 

 

                        // 以华文行楷为例 

                        StreamResourceInfo sri = App.GetResourceStream( 

                            new Uri("/Silverlight20;component/Resource/STXINGKA.TTF", UriKind.Relative)); 

 

                        // 设置需要显示的字体源 

                        lblMsg.FontSource = new FontSource(sri.Stream); 

 

                        // 设置需要显示的字体名称 

                        // STXingkai - 华文行楷的字体名称 

                        lblMsg.FontFamily = new FontFamily("STXingkai"); 

                } 

        } 

}

3、演示如何为 Silverlight 程序传递初始化参数

为 object 标记配置参数：initParams, 多个参数用“,”分隔

<param name="initParams" value="key1=value1,key2=value2" />

或者为 Silverlight 控件配置属性：InitParameters, 多个参数用“,”分隔

<asp:Silverlight ID="Xaml1" runat="server" InitParameters="key1=value1,key2=value2" />

App.xaml.cs

private void Application_Startup(object sender, StartupEventArgs e) 

{ 

        // e.InitParams - 获取传递给 Silverlight插件 的参数 

 

        foreach (var param in e.InitParams) 

        { 

                // 将参数保存到应用程序级别的资源内 

                Resources.Add(param.Key, param.Value); 

        } 

 

        this.RootVisual = new Page(); 

}

InitParams.xaml

<UserControl x:Class="Silverlight20.Tip.InitParams" 

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"    

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> 

        <StackPanel HorizontalAlignment="Left" Margin="5"> 



                <TextBlock x:Name="lblMsg" /> 



                <!--以声明的方式读取应用程序级别的资源--> 

                <TextBlock Text="{StaticResource key2}"    /> 



        </StackPanel> 

</UserControl>

InitParams.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 InitParams : UserControl 

        { 

                public InitParams() 

                { 

                        InitializeComponent(); 

 

                        this.Loaded += new RoutedEventHandler(InitParams_Loaded); 

                } 

 

                void InitParams_Loaded(object sender, RoutedEventArgs e) 

                { 

                        // 以编码的方式读取应用程序级别的资源 

                        lblMsg.Text += App.Current.Resources["key1"]; 

                } 

        } 

} 

4、演示如何响应并处理鼠标右键事件

为 Silverlight 插件配置参数，windowless="true"

<param name="windowless" value="true" />

RightClick.xaml

<UserControl x:Class="Silverlight20.Tip.RightClick" 

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"    

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> 

        <Border BorderBrush="Black" BorderThickness="4" Background="Bisque" Width="100" HorizontalAlignment="Left"> 

                 

                <!--右键菜单的内容--> 

                <StackPanel> 

                        <TextBlock Margin="5">我是右键菜单1</TextBlock> 

                        <TextBlock Margin="5">我是右键菜单2</TextBlock> 

                        <TextBlock Margin="5">我是右键菜单3</TextBlock> 

                </StackPanel> 



                <!--右键菜单的位置--> 

                <Border.RenderTransform> 

                        <TranslateTransform x:Name="tt" /> 

                </Border.RenderTransform> 



        </Border> 

</UserControl>

RightClick.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.Browser; 

 

namespace Silverlight20.Tip 

{ 

        public partial class RightClick : UserControl 

        { 

                public RightClick() 

                { 

                        InitializeComponent(); 

 

                        this.Loaded += new RoutedEventHandler(RightClick_Loaded); 

                } 

 

                void RightClick_Loaded(object sender, RoutedEventArgs e) 

                { 

                        // 监听页面的 oncontextmenu 事件，并处理 

                        // 注：如果要监听 oncontextmenu 事件，需要将 Silverlight 程序的 Windowless 属性设置为 true 

                        HtmlPage.Document.AttachEvent("oncontextmenu", this.OnContextMenu); 

                } 

 

                private void OnContextMenu(object sender, HtmlEventArgs e)    

                { 

                        // 设置右键菜单出现的位置 

                        tt.X = e.OffsetX - 201; 

                        tt.Y = e.OffsetY - 30; 

 

                        // 禁止其他 DOM 响应该事件（屏蔽掉默认的右键菜单） 

                        // 相当于 event.returnValue = false; 

                        e.PreventDefault(); 

                } 

        } 

}

5、Silverlight 程序的常用配置参数的说明

ParamDemo.html

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 

<html xmlns="http://www.w3.org/1999/xhtml"> 

<head> 

        <title>Silverlight20</title> 

        <style type="text/css"> 

                html, body 

                { 

                        height: 100%; 

                        overflow: auto; 

                } 

                body 

                { 

                        padding: 0; 

                        margin: 0; 

                } 

                #silverlightControlHost 

                { 

                        height: 100%; 

                } 

        </style> 



        <script type="text/javascript" src="../Silverlight.js"></script> 



</head> 

<body> 

        <div id="silverlightControlHost"> 

                <!-- 

                注：括号里为 Silverlight 控件所对应的属性 

                source(Source) - xap 文件的路径 

                minRuntimeVersion(MinimumVersion) - 所需的最低 Silverlight 插件版本 

                autoUpgrade(AutoUpgrade) - Silverlight 插件是否要自动升级。默认值 true 

                initParams(InitParameters) - 为 Silverlight 程序传递初始化参数。用“,”分隔 

                enableFrameRateCounter(EnableFrameRateCounter) - 是否在宿主浏览器的状态栏中显示当前呈现的 Silverlight 内容的每秒帧数(fps)，用于调试用。默认值 false 

                maxFrameRate(MaxFrameRate) - 每秒要呈现的最大帧数。默认值 0 （表示未指定最大帧数） 

                enableRedrawRegions(EnableRedrawRegions) - 是否显示每个帧所重绘的区域。默认值 false 

                enableHtmlAccess(HtmlAccess) - 是否允许 HTML DOM 访问 

                        对于 object 标记的 param : value="true" - 允许；value="false" - 不允许；无此 param - 同域允许 

                        对于 Silverlight 控件的 HtmlAccess 属性 : Enabled - 允许；Disabled - 不允许；SameDomain - 同域允许 

                windowless(Windowless) - 指定 Silverlight 插件是否为无窗口插件 

                --> 

                <object id="xaml1" data="data:application/x-silverlight-2," type="application/x-silverlight-2" 

                        width="100%" height="100%"> 

                        <param name="source" value="../ClientBin/Silverlight20.xap" /> 

                        <param name="minRuntimeVersion" value="2.0.31005.0" /> 

                        <param name="autoUpgrade" value="true" /> 

                        <param name="initParams" value="key1=value1,key2=value2" /> 

                        <param name="enableFrameRateCounter" value="true" /> 

                        <param name="maxFrameRate" value="30" /> 

                        <param name="enableRedrawRegions" value="false" /> 

                        <param name="enableHtmlAccess" value="true" /> 

                        <param name="windowless" value="true" /> 

                </object> 

                <iframe style='visibility: hidden; height: 0; width: 0; border: 0px'></iframe> 

                <!--iframe 元素和其他附加到 HTML 的元素有助于确保跨浏览器兼容性。iframe 的存在可避免 Safari 浏览器缓存页面。当用户向后导航到以前访问过的 Silverlight 页面时，Safari 缓存可避免重新加载 Silverlight 插件--> 

        </div> 

</body> 

</html>

OK

[源码下载]