Silverlight4学习笔记方块鼠标跟随

XAML代码：
=============================================

<UserControl x:Class="Test_SL.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">

    <Grid x:Name="lr" Background="Blue">
        <StackPanel HorizontalAlignment="Left"></StackPanel>
        <Rectangle Height="50" HorizontalAlignment="Left" Name="rectangle1" Stroke="{x:Null}" StrokeThickness="1" VerticalAlignment="Top" Width="50" Fill="Red" Margin="10,10,0,0" RadiusX="5" RadiusY="5">
            <Rectangle.RenderTransform>
                <TranslateTransform x:Name="tt" X="0" Y="0" />
            </Rectangle.RenderTransform>
        </Rectangle>
    </Grid>
</UserControl>

CS代码：

=============================================

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 Test_SL
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();
            this.MyInit();
        }

        private void MyInit()
        {
            this.lr.MouseLeftButtonDown += new MouseButtonEventHandler(lr_MouseLeftButtonDown);
        }

        void lr_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            Storyboard sb = new Storyboard();
            //获取当前鼠标位置。
            Point p = e.GetPosition(this.lr);

            //横向运动的动画。
            DoubleAnimation daX = new DoubleAnimation()
            {
                To = p.X,
                Duration = TimeSpan.FromMilliseconds(500)
            };
            Storyboard.SetTargetProperty(daX, new PropertyPath("X"));
            Storyboard.SetTarget(daX, this.tt);
            sb.Children.Add(daX);

            //纵向运动的动画。
            DoubleAnimation daY = new DoubleAnimation()
            {
                To = p.Y,
                Duration = TimeSpan.FromMilliseconds(100)
            };
            Storyboard.SetTargetProperty(daY, new PropertyPath("Y"));
            Storyboard.SetTarget(daY, this.tt);
            sb.Children.Add(daY);

            //开始动画。
            sb.Begin();
        }
    }
}

完成了，貌似挺简单。