1.新建一个控件WindowsPhoneControl1
WindowsPhoneControl1.xaml
<UserControl x:Class="DefaultImage.WindowsPhoneControl1" 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" FontFamily="{StaticResource PhoneFontFamilyNormal}" FontSize="{StaticResource PhoneFontSizeNormal}" Foreground="{StaticResource PhoneForegroundBrush}" d:DesignHeight="480" d:DesignWidth="480"> <Grid x:Name="LayoutRoot"> <Image Height="69" HorizontalAlignment="Left" Margin="10,10,0,0" Name="image1" Stretch="Fill" VerticalAlignment="Top" Width="76" Source="/DefaultImage;component/hotelphoto_alterimg.png" /> </Grid> </UserControl>
WindowsPhoneControl1.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.Windows.Media.Imaging; namespace DefaultImage { public partial class WindowsPhoneControl1 : UserControl { public WindowsPhoneControl1() { InitializeComponent(); DispatcherTimer timer = new DispatcherTimer(); timer.Tick += new EventHandler(timer_Tick); timer.Interval = new TimeSpan(0, 0, 0, 0, 100); timer.Start(); } private string myImageSource; public string MyImageSource { get { return myImageSource; } set { myImageSource = value; WebClient wc = new WebClient(); wc.OpenReadCompleted += new OpenReadCompletedEventHandler(wc_OpenReadCompleted); wc.OpenReadAsync(new Uri(myImageSource)); } } void wc_OpenReadCompleted(object sender, OpenReadCompletedEventArgs e) { BitmapImage bitmapImage = new BitmapImage(); bitmapImage.SetSource(e.Result); image1.Source = bitmapImage; } void timer_Tick(object sender, EventArgs e) { MyImageSource = this.DataContext.ToString(); } } }
MainPage.xaml
<phone:PhoneApplicationPage x:Class="DefaultImage.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone" xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="768" FontFamily="{StaticResource PhoneFontFamilyNormal}" FontSize="{StaticResource PhoneFontSizeNormal}" Foreground="{StaticResource PhoneForegroundBrush}" SupportedOrientations="Portrait" Orientation="Portrait" shell:SystemTray.IsVisible="True" xmlns:my="clr-namespace:DefaultImage"> <!--LayoutRoot is the root grid where all page content is placed--> <Grid x:Name="LayoutRoot" Background="Transparent"> <Grid.RowDefinitions> <RowDefinition Height="Auto"/> <RowDefinition Height="*"/> </Grid.RowDefinitions> <!--TitlePanel contains the name of the application and page title--> <StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28"> <TextBlock x:Name="ApplicationTitle" Text="MY APPLICATION" Style="{StaticResource PhoneTextNormalStyle}"/> <TextBlock x:Name="PageTitle" Text="page name" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/> </StackPanel> <!--ContentPanel - place additional content here--> <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0"> <ListBox Height="473" HorizontalAlignment="Left" ItemsSource="{Binding}" Margin="10,10,0,0" Name="listBox1" VerticalAlignment="Top" Width="440"> <ListBox.ItemTemplate> <DataTemplate> <my:WindowsPhoneControl1 DataContext="{Binding MySource}"/> </DataTemplate> </ListBox.ItemTemplate> </ListBox> </Grid> </Grid> </phone:PhoneApplicationPage>
MainPage.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 Microsoft.Phone.Controls; namespace DefaultImage { public partial class MainPage : PhoneApplicationPage { // Constructor public MainPage() { InitializeComponent(); var list = new List<MyImage> { new MyImage(){ MySource= "http://i.microsoft.com/global/ImageStore/PublishingImages/Asset/thumbnails/icon_monthsecurityupdates_40x40.png"}, //new MyImage(){ MySource= "http://i.microsoft.com/global/ImageStore/PublishingImages/Asset/thumbnails/icon_mssecurityessentials_40x40.png"} }; listBox1.DataContext = list; } } public class MyImage { public string MySource { get; set; } } }