今天装好Silverlight后,第一个程序就是写个helloworld,这里贡献给Silverlight的初学者,希望对你有用!
这里我认为您已经装好VS2008和Siverlight2 beta1,:)
下面就开始我们的helloworld之旅吧!hoho
1、打开vs2008-〉创建Siverlight Application项目
2、输入SilverLightHelloWorld->OK我们将看到:
3、选择第二项Generate an .... ->OK,我们将看到下图创建好的工程:
4、我们试着编译以下F7:
编译通过没有问题,哈哈
我们将看到page.xaml代码:
<UserControl x:Class="SilverlightHelloWorld.Page"
xmlns="http://schemas.microsoft.com/client/2007"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Width="400" Height="300">
<Grid x:Name="LayoutRoot" Background="White">
</Grid>
</UserControl>
xmlns="http://schemas.microsoft.com/client/2007"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Width="400" Height="300">
<Grid x:Name="LayoutRoot" Background="White">
</Grid>
</UserControl>
5、我们需要更改其xaml代码,更改Grid的背景色并添加一个Button,如下代码:
<UserControl x:Class="SilverlightHelloWorld.Page"
xmlns="http://schemas.microsoft.com/client/2007"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Width="400" Height="300">
<Grid x:Name="LayoutRoot" Background="Red">
<Button Content="HelloWorld" Width="100" Height="20">
</Button>
</Grid>
</UserControl>
xmlns="http://schemas.microsoft.com/client/2007"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Width="400" Height="300">
<Grid x:Name="LayoutRoot" Background="Red">
<Button Content="HelloWorld" Width="100" Height="20">
</Button>
</Grid>
</UserControl>
背景改成了红色,添加了HelloWorld按钮,效果如下图:
6、我们再给HelloWorld加个Click事件,代码入下:
<UserControl x:Class="SilverlightHelloWorld.Page"
xmlns="http://schemas.microsoft.com/client/2007"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Width="400" Height="300">
<Grid x:Name="LayoutRoot" Background="Red">
<Button Content="HelloWorld" Width="100" Height="20" Click="Button_Click">
</Button>
</Grid>
</UserControl>
xmlns="http://schemas.microsoft.com/client/2007"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Width="400" Height="300">
<Grid x:Name="LayoutRoot" Background="Red">
<Button Content="HelloWorld" Width="100" Height="20" Click="Button_Click">
</Button>
</Grid>
</UserControl>
还需要添加事件的处理,在Page.xaml.cs中,代码如下:
using System;
using System.Collections.Generic;
using System.Linq;
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 SilverlightHelloWorld
...{
public partial class Page : UserControl
...{
public Page()
...{
InitializeComponent();
}
private void Button_Click(object sender, RoutedEventArgs e)
...{
//这里添加代码
SolidColorBrush brush = (SolidColorBrush)this.LayoutRoot.Background;
if (brush.Color == Colors.Red)
...{
this.LayoutRoot.Background = new SolidColorBrush(Colors.Blue);
}
}
}
}
using System.Collections.Generic;
using System.Linq;
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 SilverlightHelloWorld
...{
public partial class Page : UserControl
...{
public Page()
...{
InitializeComponent();
}
private void Button_Click(object sender, RoutedEventArgs e)
...{
//这里添加代码
SolidColorBrush brush = (SolidColorBrush)this.LayoutRoot.Background;
if (brush.Color == Colors.Red)
...{
this.LayoutRoot.Background = new SolidColorBrush(Colors.Blue);
}
}
}
}
代码逻辑很简单,每点击一次按钮会更改一次背景色。
F5运行看看效果:
点击后的效果:
XAML何以玩出很多花样,剩下的就看你了,hoho!
作者:王卫星
转载注明出处,谢谢!