设置Silverlight页面大小随web page大小变化的方法

设置Silverlight页面大小随web page大小变化的方法

Canvas 是绝对定位的，应改为 Grid ，而且 <Image Height="209" Width="83"/> 这个也不应当指定固定的 Height 和 Width

完整的xml代码如下所示：

<UserControl x:Class="AppSilverlightCwf.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"
    Loaded="UserControl_Loaded" DataContext="{Binding}">    
    <Grid x:Name="CanvasRoot" Background="White">
        <Image  Name="image1" Stretch="Fill">
        </Image>
    </Grid>
</UserControl>

初始化函数如下所示：

public MainPage()
        {
            InitializeComponent();
            //
            try
            {                
                this.ScreenHeight = (int)Application.Current.Host.Content.ActualHeight;
                this.ScreenWidth = (int)Application.Current.Host.Content.ActualWidth;
                //
                this.ScreenWidth = (int)(this.ScreenWidth*1.0);
                this.ScreenHeight = (int)(this.ScreenHeight * 1.0);
                //
                this.viewDX = this.ScreenWidth / 2;
                this.viewDY = this.ScreenHeight / 2;

                //
                CompositionTarget.Rendering += new EventHandler(CompositionTarget_Rendering);
                _graphics2D = new Graphics2D(ScreenWidth,(int)(ScreenHeight*1.0));
                AffineTransform at = new AffineTransform();// new AffineTransform(1,-1,0);
                _graphics2D.AffineTransform = at;
                //
                _bmp = new WriteableBitmap(ScreenWidth,ScreenHeight);
                this.image1.source = _bmp;

                //DrawStringtest();
                //this.Lines();
                //this.initWorkflow(SLApp.rt_pid);
                RefreshBitmap();                
            }
            catch (Exception ee)
            {
            }
        }