我正在获取数据来创建一个类似于博客的列表框，其中包含来自网络博客的 JSON，我想在您选择一个项目时将此数据传递到另一个包含此新闻信息（标题、内容和图像）的简单 xaml 页面。如何使用列表中所选项目的信息获取新页面的所有值？
我有这个列表框的代码：
<ListBox x:Name="NewsList" Margin="0,200,0,0" ItemsSource="{Binding Items}" SelectionChanged="ListBox_SelectionChanged">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal" Margin="0,0,0,17" Width="432" Height="100">
<!--Replace rectangle with image-->
<Image x:Name="Imagen" Height="100" Width="100" Margin="12,0,9,0">
<Image.Source>
<BitmapImage UriSource="{Binding LineThree}" />
</Image.Source>
</Image>
<StackPanel Width="311">
<TextBlock x:Name="Titulo" Text="{Binding LineOne}" TextWrapping="Wrap" Style="{StaticResource PhoneTextExtraLargeStyle}" FontSize="18.667" FontFamily="Tahoma" Margin="12,0,12,6"/>
<TextBlock x:Name="Contenido" Text="{Binding LineTwo}" TextWrapping="Wrap" Margin="12,0" Style="{StaticResource PhoneTextSubtleStyle}" FontSize="16"/>
</StackPanel>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
我从这里的新闻中获取值：项目是我添加新闻值的列表（标题、内容和图像）
public void LoadData()
{
WebRequest.RegisterPrefix("http://automaticband.es/blog/", WebRequestCreator.ClientHttp);
Uri serviceUri = new Uri("http://automaticband.es/blog/?json=get_recent_post");
WebClient downloader = new WebClient();
downloader.OpenReadCompleted += new OpenReadCompletedEventHandler(downloader_OpenReadCompleted);
downloader.OpenReadAsync(serviceUri);
}
public event PropertyChangedEventHandler PropertyChanged;
private void NotifyPropertyChanged(String propertyName)
{
PropertyChangedEventHandler handler = PropertyChanged;
if (null != handler)
{
handler(this, new PropertyChangedEventArgs(propertyName));
}
}
void downloader_OpenReadCompleted(object sender, OpenReadCompletedEventArgs e)
{
if (e.Error == null)
{
try
{
Stream responseStream = e.Result;
DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(Posts));
Posts response = (Posts)ser.ReadObject(responseStream);
if (response.posts != null && response.posts.Count > 0)
{
foreach (Post post in response.posts)
{
this.Items.Add(new ItemViewModel() { LineOne = post.title, LineTwo = post.excerpt,
LineThree = post.thumbnail});
}
}
}
catch (Exception x)
{
return;
}
this.IsDataLoaded = true;
}
}
谢谢