布局元素和用户控件设计Silverlight网站02

1 文件安排

 

2 导入图片

　　2.1 图片ff4.png

　　

　　2.2 图片header.jpg

　　

3 创建Silverlight应用程序

　　3.1 MainPage.xaml文件

<UserControl x:Class="silverlight_website.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="900"
    xmlns:uc="clr-namespace:silverlight_website.element_xaml">
    <Grid x:Name="LayoutRoot">
        <Grid.RowDefinitions>
            <RowDefinition Height="80"/>
            <RowDefinition Height="35"/>
            <RowDefinition />
            <RowDefinition Height="30"/>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition />
        </Grid.ColumnDefinitions>
        <!--标题UserControl-->
        <uc:FYWorkShopTitle Grid.Row="0"/>
        <!--菜单UserControl-->
        <uc:FYWorkShopMenu Grid.Row="1"/>
        <Grid Grid.Row="2" ShowGridLines="True" Background="Gray">
            <Grid.RowDefinitions></Grid.RowDefinitions>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="200"></ColumnDefinition>
                <ColumnDefinition></ColumnDefinition>
            </Grid.ColumnDefinitions>
            <!--关于UserControl-->
            <uc:FYWorkShopAbout Margin="5"/>
            <StackPanel Grid.Column="1">
                <ScrollViewer VerticalScrollBarVisibility="Visible"  Height="500">
                    <!--新闻列表UserControl-->
                    <StackPanel>
                        <uc:FYWorkShopNewsItem Height="130" Margin="10,0"/>
                        <uc:FYWorkShopNewsItem Height="130" Margin="10,0"/>
                        <uc:FYWorkShopNewsItem Height="130" Margin="10,0"/>
                        <uc:FYWorkShopNewsItem Height="130" Margin="10,0"/>
                    </StackPanel>
                </ScrollViewer>
            </StackPanel>
        </Grid>

        <!--页脚UserControl-->　　　　
        <uc:FYWorkShopFooter Grid.Row="3"/>
    </Grid>
</UserControl>

　　3.2 建立FYWorkShop.xaml的用户控件(网站标题)

<UserControl x:Class="silverlight_website.element_xaml.FYWorkShopTitle"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <Grid x:Name="LayoutRoot">
        <StackPanel>
            <StackPanel.Background>
                <ImageBrush ImageSource="../pictures/header.jpg"/>
            </StackPanel.Background>
        </StackPanel>
    </Grid>
</UserControl>

　　3.3 建立FYWorkShopMenu.xaml的用户控件(导航菜单)

<UserControl x:Class="silverlight_website.element_xaml.FYWorkShopMenu"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <Grid x:Name="LayoutRoot" Background="White">
        <Border CornerRadius="5" BorderBrush="Black" BorderThickness="3">
            <Border.Background>
                <LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
                    <GradientStop Color="#FF9BCCEE" Offset="0.143"/>
                    <GradientStop Color="#FF001316" Offset="1.0"/>
                    <GradientStop Color="#FF28B8BD" />
                    <GradientStop Color="#FF00435B" Offset="0.395"/>        
                </LinearGradientBrush>
            </Border.Background>
            <StackPanel Orientation="Horizontal">
                <HyperlinkButton Width="80" Margin="40 5 0 0"
                                 Content="Home" Foreground="White"/>
                <TextBlock Text="|" Foreground="White" Height="15"/>
                <HyperlinkButton Width="80" Margin="15 5 0 0"
                                 Content="Download" Foreground="White"/>
                <TextBlock Text="|" Foreground="White" Height="15"/>
                <HyperlinkButton Width="80" Margin="15 5 0 0"
                                 Content="Contact" Foreground="White"/>
                <TextBlock Text="|" Foreground="White" Height="15"/>
                <HyperlinkButton Width="50" Margin="15 5 0 0"
                                 Content="Aboutus" Foreground="White"/>
            </StackPanel>
        </Border>
    </Grid>
</UserControl>

　　3.4 建立FYWorkShopAbout.xaml的用户控件(简介)

<UserControl x:Class="silverlight_website.element_xaml.FYWorkShopAbout"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" >
    <Grid x:Name="LayoutRoot">
        <StackPanel Grid.Column="0">
            <TextBlock Text="About Fengyun" Foreground="White"
                       Height="20"/>
            <Image Source="../pictures/ff4.png"/>
            <TextBlock Height="150" Foreground="White" TextWrapping="Wrap" FontSize="18">
                Silverlight是从2007年开始出现，如今已经经历了3个版本，分别是Silverlight 1.0、Silverlight 2.0和Silverlight 3.0
            </TextBlock>
        </StackPanel>
    </Grid>
</UserControl>

　　3.5 建立FYWorkShopNewsItem.xaml(新闻列表)

<UserControl x:Class="silverlight_website.element_xaml.FYWorkShopNewsItem"
    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="580" d:DesignHeight="119">
    <Grid x:Name="LayoutRoot">
        <StackPanel Margin="10,10,-10,-10">
            <HyperlinkButton x:Name="hlbTitle" FontSize="16"/>
            <TextBlock Height="97" x:Name="tbkContent" FontSize="14"
                       Foreground="White"
                       TextWrapping="Wrap"/>
        </StackPanel>
    </Grid>
</UserControl>

 　　3.6 FYWorkShopNewsItem.xalm.cs文件

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 silverlight_website.element_xaml
{
    public partial class FYWorkShopNewsItem : UserControl
    {
        public FYWorkShopNewsItem()
        {
            InitializeComponent();
            hlbTitle.Content = "Silverlight 3 Release Date (RTW) Surprise Update 07/08/2009";
            tbkContent.Text = @"Silverlight 3 RTW has been released. Please visit my blog post 
            here for all the download links:
            http://silverlighthack.com/post/2009/07/09/Silverlight-3-Relase-and-Download-Links.aspx 
            Update 05/28/2009: Scott Guthrie during his online talk yesterday mentioned that Silverlight 
            3 is close to being finished up and will be released "soon".I remember when he 
            mentioned that during Silverlight 2 Beta 2/RC0 and Silverlight 2 RTW was out within a few 
            weeks. The release is REAL close now! Expression Blend 3 is also getting some updates in RTW.
            Also note the July 10, 2009 invitation to talk about Silverlight 3";
        
        }
    }
}

　　3.7 建立FYWorkShopFooter.xaml的用户控件(页脚)

<UserControl x:Class="silverlight_website.element_xaml.FYWorkShopFooter"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" >
    <Grid x:Name="LayoutRoot" Background="#FF00435B">
        <StackPanel>
            <TextBlock Height="20" Margin="5" 
                       Text="风云Silverlight工作室版本所有 Copyright 2009 Email:372900288@qq.com"
                       Foreground="White"/>
        </StackPanel>
    </Grid>
</UserControl>

4 程序运行结果：

5 总结

5.1 LinearGradientBrush的应用

LinearGradientBrush使用线性渐变绘制区域。该直线的终点由线性渐变的StartPoint和EndPoint属性定义。LinearGradientBrush沿此直线绘制其　　　　GradientStops。

默认的线性渐变是沿对角方向进行的。默认情况下，线性渐变的StartPoint是被绘制区域的左上角值为 0,0 的 Point，其 EndPoint是被绘制区域的右下角值为 1,1 的 Point。所得渐变的颜色是沿着对角方向路径插入的。

 

具有突出显示的渐变停止点的对角线性渐变

 

<StackPanel>
  <!-- This rectangle is painted with a vertical linear gradient. -->
  <Rectangle Width="200" Height="100">
    <Rectangle.Fill>
      <LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
        <GradientStop Color="Yellow" Offset="0.0" />
        <GradientStop Color="Red" Offset="0.25" />
        <GradientStop Color="Blue" Offset="0.75" />
        <GradientStop Color="LimeGreen" Offset="1.0" />
      </LinearGradientBrush>
    </Rectangle.Fill>
  </Rectangle>
</StackPanel>

效果如下：

5.2 命名空间

代码中的xmlns:uc="clr-namespace:silverlight_website.element_xaml"> 就是引用名为silverlight_website.element_xaml的命名空间。这样一来，凡是属于此空间的UserControl均可以在FYWorkShop.xaml文件中引用，在Silverlight中，这种做法是十分推荐的。

5.3 TextWrapping使用

TextWrapping 属性指示文本在 TextBlock 中如何换行。TextWrapping枚举定义两个值：NoWrap 和 Wrap。

6 相关资料参考

银光志Silverlight 3.0 开发详解与最佳实践

英文：

http://msdn.microsoft.com/en-us/library/

中文：

http://msdn.microsoft.com/zh-cn/library/