Silverlight4入门之Button控件(三)

将上节的MainPage.xaml文件替换如下：

<UserControl x:Class="FirstSilverlightApplication.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:DesignHeight="300" d:DesignWidth="400" xmlns:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"> <Grid x:Name="LayoutRoot" Background="White"> <Button Height="23" HorizontalAlignment="Left" Margin="10,10,0,0" Name="button1" VerticalAlignment="Top" Width="75" Click="button1_Click"> </Button> </Grid> </UserControl>

MainPage.xaml.cs替换如下：

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 FirstSilverlightApplication { public partial class MainPage : UserControl { public MainPage() { InitializeComponent(); button1.Content = 0; } private void button1_Click(object sender, RoutedEventArgs e) { int n = Convert.ToInt16(button1.Content.ToString()); n++; button1.Content = n; } } }

按F5运行

把button1.Content = 0;注释掉,点击事件以及代码注释掉

<UserControl x:Class="FirstSilverlightApplication.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:DesignHeight="300" d:DesignWidth="400" xmlns:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"> <Grid x:Name="LayoutRoot" Background="White"> <Button Height="116" HorizontalAlignment="Left" Margin="10,10,0,0" Name="button1" VerticalAlignment="Top" Width="341"> <Button.Content> <Image Height="93" HorizontalAlignment="Left" Name="image1" Stretch="Fill" VerticalAlignment="Top" Width="270" Source="/FirstSilverlightApplication;component/xu_xi_yuan.jpg" /> </Button.Content> </Button> </Grid> </UserControl>

其中<Button.Content>里面只能放一个元素，因为它不是<StackPanel>等这类型的容器