Use code to control color animation
<UserControl x:Class='SilverlightApplication3.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:DesignWidth='640' d:DesignHeight='480'>
<Canvas x:Name="LayoutRoot" Background="White">
<Ellipse Height="218" Width="218" Canvas.Left="294" Canvas.Top="195" Fill="#FFFF0000"
Cursor="Hand" x:Name="RedEllipse"/>
</Canvas>
</UserControl>
//File: Page.xaml.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;
namespace SilverlightApplication3
{
public partial class MainPage : UserControl
{
private Storyboard TurnBlue = new Storyboard();
private Storyboard TurnRed = new Storyboard();
private ColorAnimation BlueColor = new ColorAnimation();
private ColorAnimation RedColor = new ColorAnimation();
public MainPage()
{
InitializeComponent();
BlueColor.SetValue(Storyboard.TargetNameProperty, "RedEllipse");
BlueColor.SetValue(Storyboard.TargetPropertyProperty, new PropertyPath("(Shape.Fill).(SolidColorBrush.Color)"));
Color ToColor = Color.FromArgb(255, 13, 8, 116);
BlueColor.To = ToColor;
TurnBlue.Children.Add(BlueColor);
LayoutRoot.Resources.Add("TurnBlue", TurnBlue);
RedColor.SetValue(Storyboard.TargetNameProperty, "RedEllipse");
RedColor.SetValue(Storyboard.TargetPropertyProperty, new PropertyPath("(Shape.Fill).(SolidColorBrush.Color)"));
Color ToColor1 = Color.FromArgb(255, 255, 0, 0);
RedColor.To = ToColor1;
TurnRed.Children.Add(RedColor);
LayoutRoot.Resources.Add("TurnRed", TurnRed);
RedEllipse.MouseEnter += new MouseEventHandler(RedEllipse_MouseEnter);
RedEllipse.MouseLeave += new MouseEventHandler(RedEllipse_MouseLeave);
}
private void RedEllipse_MouseLeave(object sender, MouseEventArgs e)
{
TurnRed.Begin();
}
private void RedEllipse_MouseEnter(object sender, MouseEventArgs e)
{
TurnBlue.Begin();
}
}
}
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