<Window x:Class="WpfTest.Window2"

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

        Title="Window2" Height="300" Width="300">

    <Grid>

        <Image Height="150" HorizontalAlignment="Left" Margin="12,12,0,0" Name="image1" Stretch="Fill" VerticalAlignment="Top" Width="200" Source="{Binding Path=MyString}" />

        <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="40,176,0,0" Name="button1" VerticalAlignment="Top" Width="75" Click="button1_Click" />

    </Grid>

</Window>

using System;

using System.ComponentModel;

using System.Windows;



namespace WpfTest

{

    /// <summary>

    /// Window2.xaml 的交互逻辑

    /// </summary>

    public partial class Window2 : Window, INotifyPropertyChanged

    {

        public event PropertyChangedEventHandler PropertyChanged;

        private void NotifyPropertyChanged(String propertyName)

        {

            if (PropertyChanged != null) {

                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));