序列化和LINQ to XML处理XML

整理了两种读写XML文件的方法：序列化和LINQ to XML。WPF写了个简单的例子。

1，MainWindow.xaml源码

[csharp]
<Window x:Class="XmlDemo.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="241" Width="388">
    <Grid>
        <Button Content="加载" HorizontalAlignment="Left" Margin="56,49,0,0" VerticalAlignment="Top" Width="87" Height="39" Click="Button_Click_1"/>
        <Button Content="保存" HorizontalAlignment="Left" Margin="215,49,0,0" VerticalAlignment="Top" Width="88" Height="39" Click="Button_Click_2"/>
        <Button Content="加载" HorizontalAlignment="Left" Margin="56,144,0,0" VerticalAlignment="Top" Width="87" Height="37" Click="Button_Click_3"/>
        <Button Content="保存" HorizontalAlignment="Left" Margin="215,144,0,0" VerticalAlignment="Top" Width="88" Height="37" Click="Button_Click_4"/>
        <Label Content="序列化和反序列化方式" HorizontalAlignment="Left" Margin="56,10,0,0" VerticalAlignment="Top"/>
        <Label Content="LINQ to XML 方式" HorizontalAlignment="Left" Margin="56,103,0,0" VerticalAlignment="Top"/>

    </Grid>
</Window>
2，MainWindow.xaml.cs后台代码
[csharp]
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
    private ClassDemo demo = new ClassDemo();

    public MainWindow()
    {
        InitializeComponent();

        demo.Name = "myname";
        demo.Members = new List<string> { "成员一", "成员二" };

        demo.Children = new List<ClassChild>{
                               new ClassChild(){ID="1",Name="Child 1"},
                               new ClassChild(){ID="2",Name="Child 2"}};
    }

    /// <summary>
    /// 反序列化加载
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void Button_Click_1(object sender, RoutedEventArgs e)
    {
        XmlSerializer serializer = new XmlSerializer(typeof(ClassDemo));
        StreamReader sr=null;

        try
        {
            sr = new StreamReader("XmlDemo.xml");
            ClassDemo item = serializer.Deserialize(sr) as ClassDemo;

            MessageBox.Show("加载成功！");
        }
        catch (Exception)
        {
            MessageBox.Show("如果文件不存在，请先保存！");
        }
        finally
        {
            if (sr != null)
                sr.Close();
        }

    }

    /// <summary>
    /// 序列化保存
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void Button_Click_2(object sender, RoutedEventArgs e)
    {
        XmlSerializer serializer = new XmlSerializer(typeof(ClassDemo));
        StreamWriter sw = null;

        try
        {
            sw = new StreamWriter("XmlDemo.xml");
            serializer.Serialize(sw, demo);

            MessageBox.Show("保存成功！");
        }
        catch (Exception)
        {

        }
        finally
        {
            if (sw != null)
            {
                sw.Close();
            }
        }
    }

    /// <summary>
    /// Linq方式加载
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void Button_Click_3(object sender, RoutedEventArgs e)&n

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