用c＃在wp7中读取rss feed

Question

How to read rss feed from here in wp7 app using c#: " http://www.nyc.gov/apps/311/311Today.rss "?

My Xaml code:

<ListBox HorizontalAlignment="Left" Margin="10,10,0,0" Name="listBox1" VerticalAlignment="Top" >
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <StackPanel VerticalAlignment="Top">
                        <TextBlock x:Name="titleTxt" Height="30" Text="{Binding Title}" VerticalAlignment="Bottom" />
                        <TextBlock x:Name="dateTxt" Height="30" Text="{Binding Date}" />
                        <TextBlock x:Name="descTxt" Height="30" Text="{Binding Desc}" />
                    </StackPanel>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>

My C# code:

private void PhoneApplicationPage_Loaded(object sender, RoutedEventArgs e)
    {
        XDocument xDoc = XDocument.Load("http://www.nyc.gov/apps/311/311Today.rss");
        XNamespace content = XNamespace.Get("http://purl.org/rss/1.0/modules/content/");
        var items = xDoc.Descendants("item")
               .Select(i => new
               {
                   Title = i.Element("title").Value,
                   Date = DateTime.Parse(i.Element("pubDate").Value),
                   Desc = i.Element(content + "encoded").Value,
               })
                .ToArray();
        listBox1.ItemsSource = items;

    }

Answer 1

using (var wc = new WebClient())
{
    XDocument xDoc = XDocument.Parse(wc.DownloadString("http://www.nyc.gov/apps/311/311Today.rss"));
    XNamespace content = XNamespace.Get("http://purl.org/rss/1.0/modules/content/");
    var items = xDoc.Descendants("item")
            .Select(i => new
            {
                Title = i.Element("title").Value,
                Date = DateTime.Parse(i.Element("pubDate").Value),
                Desc = i.Element(content + "encoded").Value,
            })
            .ToArray();
}

Answer 2

A while ago I wrote an entire tutorial covering this topic. Details here:

• Building a RSS reader for Windows Phone 7 – Designing the structure
• Building a RSS reader for Windows Phone 7 – Developing the functionality