Events Silverlight

    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'>
    
                           Text="Mouse is Gone"
                   MouseEnter="MouseEnterHandler"/>
     
  
//File: Page.xaml.cs
 using System;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Input;
 namespace SilverlightApplication3
 {
     public partial class MainPage : UserControl
      {
         public MainPage()
          {
             InitializeComponent();
             myText.MouseLeave += new MouseEventHandler(myText_MouseLeave);
          }
         private void MouseEnterHandler(object sender, MouseEventArgs e)
          {
             var txtBlock = sender as TextBlock;
             txtBlock.Text = "Mouse at " + e.GetPosition(LayoutRoot).ToString();
             txtBlock.FontSize = 20;
          }
         void myText_MouseLeave(object sender, MouseEventArgs e)
          {
             myText.Text = "Mouse is Gone";
             myText.FontSize = 10;
          }
      }
 }