C# 如何从独立存储中获取映像

我有这个XAML

<ListBox Margin="0,0,-12,0" ItemsSource="{Binding Items}" Name="list">
    <ListBox.ItemTemplate>
        <DataTemplate>
            <StackPanel Orientation="Horizontal" Margin="0,0,0,17">
                <!--Replace rectangle with image-->
                <Image Height="100" Width="100" Source="{Binding Img}" Margin="12,0,9,0"/>
                <StackPanel Width="311">
                    <TextBlock  Text="{Binding Pos}"/>
                </StackPanel>
            </StackPanel>
        </DataTemplate>
    </ListBox.ItemTemplate>
</ListBox>

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我已经将图像保存到独立存储中，但问题是：如何从独立存储中读取名称为id.jpg（1.jpg，2.jpg，3.jpg…）的图像？

这里有一个非常完整的示例，说明如何向ISO存储写入和从ISO存储读取图像

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在

单个

类中，

Img

属性应为ImageSource类型。要设置此属性（从IsolatedStorage读取图像），可以执行以下操作：

private ImageSource getImageFromIsolatedStorage(string imageName)
{
    BitmapImage bimg = new BitmapImage();

    using (IsolatedStorageFile iso = IsolatedStorageFile.GetUserStoreForApplication())
    {
        using (IsolatedStorageFileStream stream = iso.OpenFile(imageName, FileMode.Open, FileAccess.Read))
        {
            bimg.SetSource(stream);
        }
    }
    return bimg;
}

然后在代码段中：

using (IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForApplication())
{
    IsolatedStorageFileStream isoStoreStream = isoStore.OpenFile("chart.xml", FileMode.Open);
    using (StreamReader reader = new StreamReader(isoStoreStream))
    {
        XElement xml = XElement.Parse(reader.ReadToEnd());
        var list = from var in xml.Descendants("Pos")
            select new Single
            {
                Pos = Int32.Parse(var.Attribute("id").Value),
                Img = getImageFromIsolatedStorage(string.Format("{0}.jpg", Pos));
            };

using (IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForApplication())
{
    IsolatedStorageFileStream isoStoreStream = isoStore.OpenFile("chart.xml", FileMode.Open);
    using (StreamReader reader = new StreamReader(isoStoreStream))
    {
        XElement xml = XElement.Parse(reader.ReadToEnd());
        var list = from var in xml.Descendants("Pos")
            select new Single
            {
                Pos = Int32.Parse(var.Attribute("id").Value),
                Img = getImageFromIsolatedStorage(string.Format("{0}.jpg", Pos));
            };