UI Controls 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'>
    
        
            
        

        
            
        

                         Grid.Column="0"
                 Grid.Row="0"
                 Height="20"
                 Width="200" 
                 GotFocus="txtSomeText_GotFocus"
                 LostFocus="txtSomeText_LostFocus"/>
    

//File: Page.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
    {
        public MainPage()
        {
            InitializeComponent();
            txtSomeText.MouseEnter += new MouseEventHandler(txtSomeText_MouseEnter);
        }
        void txtSomeText_MouseEnter(object sender, MouseEventArgs e)
        {
            txtSomeText.Text = "Mouse entered!";
        }
        private void txtSomeText_GotFocus(object sender, RoutedEventArgs e)
        {
            txtSomeText.Text = "I've got focus!";
        }
        private void txtSomeText_LostFocus(object sender, RoutedEventArgs e)
        {
            txtSomeText.Text = "I've lost focus!";
        }
    }
}