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

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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

作者： webabcd

介绍
Silverlight 2.0 提示和技巧系列

Cookie - 通过 JavaScript 操作 Cookie
自定义字体 - 在程序中使用自定字体
为程序传递参数 - 为 Silverlight 程序传递初始化参数
自定义鼠标右键 - 响应并处理自定义的鼠标右键事件
程序常用配置参数 - object 标记的常用参数，以及对应的 Silverlight 控件的常用属性

在线DEMO
http://www.cnblogs.com/webabcd/archive/2008/10/09/1307486.html

示例
1、操作 Cookie 的演示
Cookie.xaml

< 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" />

< 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,”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" />

< 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" >

< 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 >

< 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 >

</ div >

</ body >

</ html >

OK
[源码下载]

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

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