<Window x:Class="Ch12Sample_03.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="范例17-3" Height="363" Width="513" FontSize="14" Loaded="Window_Loaded">
    <Grid>
        <TextBox Height="152" Name="textBox1" VerticalAlignment="Top" Margin="12,12,12,0" TextWrapping="Wrap" HorizontalScrollBarVisibility="Auto" />
        <Button Content="取出所有书籍资料" Height="32" HorizontalAlignment="Left" Margin="45,182,0,0" Name="button1" VerticalAlignment="Top" Width="178" Click="button1_Click" />
        <Button Content="所有售价超过20元的书" Height="32" HorizontalAlignment="Left" Margin="45,220,0,0" Name="button2" VerticalAlignment="Top" Width="178" Click="button2_Click" />
        <Button Content="新增书籍" Height="32" HorizontalAlignment="Left" Margin="264,182,0,0" Name="button3" VerticalAlignment="Top" Width="178" Click="button3_Click" />
        <Button Content="变更书籍资料" Height="32" HorizontalAlignment="Left" Margin="264,220,0,0" Name="button4" VerticalAlignment="Top" Width="178" Click="button4_Click" />
        <Button Content="删除书籍资料" Height="32" HorizontalAlignment="Left" Margin="264,258,0,0" Name="button5" VerticalAlignment="Top" Width="178" Click="button5_Click" />
    </Grid>
</Window>
