Windows Phone在隔离存储里存取图片文件



	 

	作为Windows Phone的初学者，第一个练手小应用是一个类似备忘录的软件，功能不是太多，涉及到即时任务，灵感，图文的一些记录。对于即时拍照然后附上相应描述再保存在独立存储里面，刚开始不太懂，搞了好几天（毕竟是新手），总算是搞定了，在此奉上关于照片存取的小小收获，给予像我一样的新手一点小小的帮助吧，也许对有些人有用而对有些人不值一提吧。

	一共两个页面，第一个为MainPage.xaml，代码如下：

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

	 2         <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">

	 3             <Image Name="PhotoImage" Height="342" HorizontalAlignment="Left" Margin="9,6,0,0"  Stretch="Fill" VerticalAlignment="Top" Width="441"/>

	 4             <Button Name="SaveButton" Click="SaveButton_Click" Content="保存" Height="72" HorizontalAlignment="Left" Margin="7,482,0,0"  VerticalAlignment="Top" Width="441">

	 5                 <Button.Background>

	 6                     <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">

	 7                         <GradientStop Color="Black" Offset="0"/>

	 8                         <GradientStop Color="#FFEB1818" Offset="1"/>

	 9                     </LinearGradientBrush>

	10                 </Button.Background>

	11             </Button>

	12             <TextBlock Height="30" HorizontalAlignment="Left" Margin="27,442,0,0" Name="textBlock1" Text="输入照片名：" FontSize="25" VerticalAlignment="Top"/>

	13             <TextBox Name="PhotoName" Height="72" HorizontalAlignment="Left" Margin="165,424,0,0"  Text="" VerticalAlignment="Top" Width="284">

	14                 <TextBox.Background>

	15                     <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">

	16                         <GradientStop Color="Black" Offset="0"/>

	17                         <GradientStop Color="#FFD01818" Offset="1"/>

	18                     </LinearGradientBrush>

	19                 </TextBox.Background>

	20             </TextBox>

	21             <Button Name="TakePhotoButton" Click="TakePhotoButton_Click" Content="拍照" Height="72" Margin="9,366,8,0" VerticalAlignment="Top">

	22                 <Button.Background>

	23                     <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">

	24                         <GradientStop Color="Black" Offset="0"/>

	25                         <GradientStop Color="#FFD61212" Offset="1"/>

	26                     </LinearGradientBrush>

	27                 </Button.Background>

	28             </Button>

	29         </Grid>

	30     </Grid>

	31 

	32     <!--Sample code showing usage of ApplicationBar-->

	33     <phone:PhoneApplicationPage.ApplicationBar>

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

	35             <shell:ApplicationBarIconButton IconUri="/Images/appbar.feature.search.rest.png" Text="查看" Click="ApplicationBarIconButton_Click"/>

	36         </shell:ApplicationBar>

	37     </phone:PhoneApplicationPage.ApplicationBar>

	后台代码如下：

	  MainPage.xaml.cs

	 1 using System;

	 2 using System.Collections.Generic;

	 3 using System.Linq;

	 4 using System.Net;

	 5 using System.Windows;

	 6 using System.Windows.Controls;

	 7 using System.Windows.Documents;

	 8 using System.Windows.Input;

	 9 using System.Windows.Media;

	10 using System.Windows.Media.Animation;

	11 using System.Windows.Shapes;

	12 using Microsoft.Phone.Controls;

	13 using Microsoft.Phone.Tasks;

	14 using Microsoft.Phone;

	15 using System.IO;

	16 using System.IO.IsolatedStorage;

	17

	18 namespace 在隔离存储中存取照片

	19 {

	20     public partial class MainPage : PhoneApplicationPage

	21     {

	22         // Constructor

	23         string filename;

	24         byte[] _imageAsByte;

	25         public MainPage()

	26         {
补充：移动开发 , Windows Phone ,