Windows Phone 7 独立存储使用XML文件来存储信息-阿里云开发者社区

XML结构清晰，使用手机独立存储的时候可以利用上XML的文件结构来保存信息，这是一种不错的选择。

使用IsolatedStorageFile对象来实现手机信息的存储，有三个主要步骤，

1、调用手机的独立存储

IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForApplication()

2、创建独立存储文件流

IsolatedStorageFileStream location = new IsolatedStorageFileStream(nameTxt.Text + ".item", System.IO.FileMode.Create, storage);

3、读写该文件流

写：

//将本地存储文件流转化为可写流
System.IO.StreamWriter file = new System.IO.StreamWriter(location);
//将XML文件保存到流file上即已经写入到手机本地存储文件上
_doc.Save(file); //_doc是你创建的文件

读：

//转化为可读流
System.IO.StreamReader file = new System.IO.StreamReader(location);
//解析流转化为XML
_xml = XElement.Parse(file.ReadToEnd());

下面是一个Demo购物清单

清单列表

MainPage.xaml


 
 

  
  View Code   

  
   

  
  <phone:PhoneApplicationPage   

  
      x:Class="ShoppingList_Demo.MainPage" 

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

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

  
      xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone" 

  
      xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone" 

  
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 

  
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 

  
      FontFamily="{StaticResource PhoneFontFamilyNormal}" 

  
      FontSize="{StaticResource PhoneFontSizeNormal}" 

  
      Foreground="{StaticResource PhoneForegroundBrush}" 

  
      SupportedOrientations="Portrait" Orientation="Portrait" 

  
      mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="696" 

  
      shell:SystemTray.IsVisible="True"> 

  
   

  
   

  
      <phone:PhoneApplicationPage.ApplicationBar> 

  
          <shell:ApplicationBar IsVisible="True" IsMenuEnabled="True"> 

  
              <shell:ApplicationBar.MenuItems> 

  
                  <shell:ApplicationBarMenuItem Text="新增" Click="New_Click"/> 

  
              </shell:ApplicationBar.MenuItems> 

  
          </shell:ApplicationBar> 

  
      </phone:PhoneApplicationPage.ApplicationBar> 

  
        

  
        

  
      <!--LayoutRoot contains the root grid where all other page content is placed--> 

  
      <Grid x:Name="LayoutRoot" Background="Transparent"> 

  
          <Grid.RowDefinitions> 

  
              <RowDefinition Height="Auto"/> 

  
              <RowDefinition Height="*"/> 

  
          </Grid.RowDefinitions> 

  
   

  
          <!--TitlePanel contains the name of the application and page title--> 

  
          <StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="24,24,0,12"> 

  
              <TextBlock x:Name="PageTitle" Text="购物清单" Margin="-3,-8,0,0" Style="{StaticResource PhoneTextTitle1Style}"/> 

  
          </StackPanel> 

  
   

  
          <!--ContentPanel - place additional content here--> 

  
          <Grid x:Name="ContentGrid" Grid.Row="1"> 

  
              <ListBox Grid.Row="0" Margin="10" FontSize="48" Name="Files"> 

  
              </ListBox> 

  
          </Grid> 

  
      </Grid> 

  
        

  
   

  
  </phone:PhoneApplicationPage>


 
 

  
  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;  

  
  using Microsoft.Phone.Controls;  

  
  using System.IO.IsolatedStorage;  

  
  using System.Xml.Linq;  

  
   

  
  namespace ShoppingList_Demo  

  
  {  

  
      public partial class MainPage : PhoneApplicationPage  

  
      {  

  
          public MainPage()  

  
          {  

  
              InitializeComponent();  

  
              //加载页面触发Loaded事件  

  
              Loaded += (object sender, RoutedEventArgs e) => 

  
              {  

  
                  Files.Items.Clear();//先清空一下ListBox的数据  

  
                  //获取应用程序的本地存储文件  

  
                  using (IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForApplication())  

  
                  {  

  
                      //获取并循环 *.item的存储文件  

  
                      foreach (string filename in storage.GetFileNames("*.item"))  

  
                      {  

  
                          //动态构建一个Grid  

  
                          Grid a = new Grid();  

  
                          //定义第一列  

  
                          ColumnDefinition col = new ColumnDefinition();  

  
                          GridLength gl = new GridLength(200);  

  
                          col.Width = gl;  

  
                          a.ColumnDefinitions.Add(col);  

  
                          //定义第二列  

  
                          ColumnDefinition col2 = new ColumnDefinition();  

  
                          GridLength gl2 = new GridLength(200);  

  
                          col2.Width = gl;  

  
                          a.ColumnDefinitions.Add(col2);  

  
                          //添加一个TextBlock现实文件名 到第一列  

  
                          TextBlock txbx = new TextBlock();  

  
                          txbx.Text = filename;  

  
                          Grid.SetColumn(txbx, 0);  

  
                          //添加一个HyperlinkButton链接到购物详细清单页面 这是第二列  

  
                          HyperlinkButton btn = new HyperlinkButton();  

  
                          btn.Width = 200;  

  
                          btn.Content = "查看详细";  

  
                          btn.Name = filename;  

  
                          btn.NavigateUri = new Uri("/DisplayPage.xaml?item=" + filename, UriKind.Relative);//传递文件名到商品详细页面  

  
   

  
                          Grid.SetColumn(btn, 1);  

  
                            

  
                          a.Children.Add(txbx);  

  
                          a.Children.Add(btn);  

  
   

  
                          Files.Items.Add(a);  

  
                      }  

  
                  }  

  
              };  

  
   

  
          }  

  
          private void New_Click(object sender, EventArgs e)  

  
          {  

  
              NavigationService.Navigate(new Uri("/AddItem.xaml", UriKind.Relative));  

  
          }  

  
      }  

  
  }

AddItem.xaml


 
 

  
  View Code   

  
   

  
  <phone:PhoneApplicationPage   

  
      x:Class="ShoppingList_Demo.AddItem" 

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

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

  
      xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone" 

  
      xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone" 

  
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 

  
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 

  
      FontFamily="{StaticResource PhoneFontFamilyNormal}" 

  
      FontSize="{StaticResource PhoneFontSizeNormal}" 

  
      Foreground="{StaticResource PhoneForegroundBrush}" 

  
      SupportedOrientations="Portrait" Orientation="Portrait" 

  
      mc:Ignorable="d" d:DesignHeight="768" d:DesignWidth="480" 

  
      shell:SystemTray.IsVisible="True"> 

  
   

  
      <!--LayoutRoot contains the root grid where all other page content is placed--> 

  
      <Grid x:Name="LayoutRoot" Background="Transparent"> 

  
          <Grid.RowDefinitions> 

  
              <RowDefinition Height="Auto"/> 

  
              <RowDefinition Height="*"/> 

  
          </Grid.RowDefinitions> 

  
   

  
          <!--TitlePanel contains the name of the application and page title--> 

  
          <StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="24,24,0,12"> 

  
              <TextBlock x:Name="PageTitle" Text="添加商品" Margin="-3,-8,0,0" Style="{StaticResource PhoneTextTitle1Style}"/> 

  
          </StackPanel> 

  
   

  
          <!--ContentPanel - place additional content here--> 

  
          <Grid x:Name="ContentGrid" Grid.Row="1"> 

  
              <Grid.RowDefinitions> 

  
                  <RowDefinition Height="90" MinHeight="72.5"/> 

  
                  <RowDefinition Height="90" MinHeight="72.5"/> 

  
                  <RowDefinition Height="90" MinHeight="72.5"/> 

  
                  <RowDefinition /> 

  
              </Grid.RowDefinitions> 

  
              <Grid.ColumnDefinitions> 

  
                  <ColumnDefinition Width="100*" /> 

  
                  <ColumnDefinition Width="346*"/> 

  
              </Grid.ColumnDefinitions> 

  
   

  
              <TextBlock Grid.Column="0" Grid.Row="0" Text="名称:" HorizontalAlignment="Center" VerticalAlignment="Center" /> 

  
              <TextBox Name="nameTxt"  Grid.Column="1" Margin="8,8,8,0" Padding="2" /> 

  
   

  
              <TextBlock Grid.Column="0" Grid.Row="1" Text="价格:"  HorizontalAlignment="Center" VerticalAlignment="Center" /> 

  
              <TextBox x:Name="priceTxt"  Grid.Column="1" Margin="8,8,8,0" Padding="2" Grid.Row="1"  /> 

  
   

  
              <TextBlock Grid.Column="0" Grid.Row="2" Text="数量:" HorizontalAlignment="Center" VerticalAlignment="Center" /> 

  
              <TextBox Name="quanTxt" Grid.Column="1" Margin="8,8,8,375" Padding="2" Grid.Row="2" Grid.RowSpan="2" /> 

  
   

  
          </Grid> 

  
          <Button x:Name="BtnSave" Content="保存" HorizontalAlignment="Right" Margin="0,0,17,0" Grid.Row="1" VerticalAlignment="Bottom" Click="BtnSave_Click" /> 

  
   

  
      

  
      </Grid> 

  
   

  
  </phone:PhoneApplicationPage>


 
 

  
  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;  

  
  using Microsoft.Phone.Controls;  

  
  using System.IO.IsolatedStorage;  

  
  using System.Xml.Linq;  

  
   

  
  namespace ShoppingList_Demo  

  
  {  

  
      public partial class AddItem : PhoneApplicationPage  

  
      {  

  
          public AddItem()  

  
          {  

  
              InitializeComponent();  

  
          }  

  
   

  
          private void BtnSave_Click(object sender, RoutedEventArgs e)  

  
          {  

  
              using (IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForApplication())  

  
              {  

  
                  XDocument _doc = new XDocument();  

  
   

  
                  XElement _item = new XElement(nameTxt.Text);//创建一个XML元素  

  
                  XAttribute price = new XAttribute("price", priceTxt.Text);//创建一个XML属性  

  
                  XAttribute quantity = new XAttribute("quantity", quanTxt.Text);  

  
   

  
                  _item.Add(price, quantity);//将这两个属性添加到 XML元素上  

  
                  //用_item 新建一个XML的Linq文档   

  
                  _doc = new XDocument(new XDeclaration("1.0", "utf-8", "yes"), _item);  

  
   

  
                  //创建一个本地存储的文件流  

  
                  IsolatedStorageFileStream location = new IsolatedStorageFileStream(nameTxt.Text + ".item",  

  
                          System.IO.FileMode.Create, storage);  

  
                  //将本地存储文件流转化为可写流  

  
                  System.IO.StreamWriter file = new System.IO.StreamWriter(location);  

  
                  //将XML文件 保存到流file上 即已经写入到手机本地存储文件上  

  
                  _doc.Save(file);  

  
   

  
                  file.Dispose();//关闭可写流  

  
                  location.Dispose();//关闭手机本地存储流  

  
                  //调回清单主页  

  
                  NavigationService.Navigate(new Uri("/MainPage.xaml", UriKind.Relative));  

  
              }  

  
          }  

  
      }  

  
  }

查看商品详细

DisplayPage.xaml


 
 

  
  View Code   

  
   

  
  <phone:PhoneApplicationPage   

  
      x:Class="ShoppingList_Demo.DisplayPage" 

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

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

  
      xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone" 

  
      xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone" 

  
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 

  
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 

  
      FontFamily="{StaticResource PhoneFontFamilyNormal}" 

  
      FontSize="{StaticResource PhoneFontSizeNormal}" 

  
      Foreground="{StaticResource PhoneForegroundBrush}" 

  
      SupportedOrientations="Portrait" Orientation="Portrait" 

  
      mc:Ignorable="d" d:DesignHeight="768" d:DesignWidth="480" 

  
      shell:SystemTray.IsVisible="True"> 

  
   

  
      <!--LayoutRoot contains the root grid where all other page content is placed--> 

  
      <Grid x:Name="LayoutRoot" Background="Transparent"> 

  
          <Grid.RowDefinitions> 

  
              <RowDefinition Height="Auto"/> 

  
              <RowDefinition Height="*"/> 

  
          </Grid.RowDefinitions> 

  
   

  
          <!--TitlePanel contains the name of the application and page title--> 

  
          <StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="24,24,0,12"> 

  
              <TextBlock x:Name="PageTitle" Text="商品信息" Margin="-3,-8,0,0" Style="{StaticResource PhoneTextTitle1Style}"/> 

  
          </StackPanel> 

  
   

  
          <!--ContentPanel - place additional content here--> 

  
          <Grid x:Name="ContentGrid" Grid.Row="1" Grid.Column="2" HorizontalAlignment="Center" Margin="10,10,10,77" ShowGridLines="True" Width="446" d:LayoutOverrides="GridBox"> 

  
              <Grid.RowDefinitions> 

  
                  <RowDefinition Height="Auto" MinHeight="72.5"/> 

  
                  <RowDefinition Height="Auto" MinHeight="72.5"/> 

  
                  <RowDefinition Height="Auto" MinHeight="72.5"/> 

  
                  <RowDefinition /> 

  
              </Grid.RowDefinitions> 

  
              <Grid.ColumnDefinitions> 

  
                  <ColumnDefinition Width="0.3*" /> 

  
                  <ColumnDefinition Width="*"/> 

  
              </Grid.ColumnDefinitions> 

  
   

  
              <TextBlock Grid.Column="0" Grid.Row="0" Text="名称:" HorizontalAlignment="Center" VerticalAlignment="Center" /> 

  
              <TextBlock Name="nameTxt"  Grid.Column="1" Margin="8" Padding="2" Height="59"  /> 

  
   

  
              <TextBlock Grid.Row="1" Text="价格:" HorizontalAlignment="Center" VerticalAlignment="Center" /> 

  
              <TextBlock x:Name="priceTxt"  Grid.Column="1" Margin="8" Padding="2" Height="59" Grid.Row="1"  /> 

  
   

  
              <TextBlock Grid.Column="0" Grid.Row="2" Text="数量:" HorizontalAlignment="Center" VerticalAlignment="Center" /> 

  
              <TextBlock Name="quanTxt" Grid.Column="1" Margin="8" Padding="2" Height="59" Grid.Row="2" /> 

  
   

  
          </Grid> 

  
          <Button x:Name="BtnBack" Content="回到购物清单" HorizontalAlignment="Right" Margin="0,0,17,0" Grid.Row="1" VerticalAlignment="Bottom" Click="BtnBack_Click" /> 

  
   

  
      </Grid> 

  
   

  
  </phone:PhoneApplicationPage>


 
 

  
  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;  

  
  using Microsoft.Phone.Controls;  

  
  using System.IO.IsolatedStorage;  

  
  using System.Xml.Linq;  

  
  using System.Windows.Navigation;  

  
   

  
  namespace ShoppingList_Demo  

  
  {  

  
      public partial class DisplayPage : PhoneApplicationPage  

  
      {  

  
            

  
          public DisplayPage()  

  
          {  

  
              InitializeComponent();  

  
          }  

  
   

  
          protected override void OnNavigatedTo(NavigationEventArgs e)  

  
          {  

  
              String itemName = "";  

  
   

  
              base.OnNavigatedTo(e);  

  
              //获取上一页面传递过来的item值  

  
              bool itemExists = NavigationContext.QueryString.TryGetValue("item", out itemName);  

  
   

  
              if (itemExists)  

  
              {  

  
                  PageTitle.Text = itemName;  

  
              }  

  
   

  
              using (IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForApplication())  

  
              {  

  
                  XElement _xml;//定义Linq的XML元素  

  
                  //打开本地存储文件  

  
                  IsolatedStorageFileStream location = new IsolatedStorageFileStream(itemName, System.IO.FileMode.Open, storage);  

  
                  //转化为可读流  

  
                  System.IO.StreamReader file = new System.IO.StreamReader(location);  

  
                  //解析流 转化为XML  

  
                  _xml = XElement.Parse(file.ReadToEnd());  

  
   

  
                  if (_xml.Name.LocalName != null)  

  
                  {  

  
                      XAttribute priceTemp = _xml.Attribute("price");//获取价格  

  
                      priceTxt.Text = priceTemp.Value.ToLower();  

  
                      XAttribute quanTemp = _xml.Attribute("quantity");//获取数量  

  
                      quanTxt.Text = quanTemp.Value.ToLower();  

  
                      nameTxt.Text = itemName;  

  
                  }  

  
   

  
                  file.Dispose();  

  
                  location.Dispose();  

  
              }  

  
          }  

  
   

  
          private void BtnBack_Click(object sender, RoutedEventArgs e)  

  
          {  

  
              NavigationService.Navigate(new Uri("/MainPage.xaml", UriKind.Relative));  

  
          }  

  
      }  

  
  }

本文转自linzheng 51CTO博客，原文链接:http://blog.51cto.com/linzheng/1078621

Windows Phone 7 独立存储使用XML文件来存储信息

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