从新页面的数据绑定列表框中获取信息 [英] getting information from a data binding listBox for a new page

问题描述

我有一个新闻部分，其中包含来自 ViewModel 的 listBox 绑定(包括 listBox)

I have a news section that consist of listBox binding from a ViewModel (listBox include)

<controls:PanoramaItem x:Name="News" Header="News">
<!--Double line list with image placeholder and text wrapping-->
<ListBox x:Name="News_ListBox" Margin="0,0,-12,0" ItemsSource="{Binding Items}"SelectionChanged="SelectNewsItem">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal" Margin="0,0,0,17">
<!--Replace rectangle with image-->
<Rectangle Height="100" Width="100" Fill="#FFE5001b" Margin="12,0,9,0"/>
<StackPanel Width="311">                                    
<TextBlock Name="NewsTitle" Text="{Binding LineOne}" TextWrapping="Wrap" Style="{StaticResource PhoneTextExtraLargeStyle}"/>
<TextBlock Name="NewsDetail" Text="{Binding LineTwo}" TextWrapping="Wrap" Margin="12,-6,12,0" Style="{StaticResource PhoneTextSubtleStyle}"/>
</StackPanel>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</controls:PanoramaItem>

我想这样做，当有人点击一个新闻项目时，他会将他带到一个新页面并查看完整信息.我做了 selectionChanged 事件，但不知道如何从绑定中获取新闻信息?

I want to do that when some one click on a news item it takes him to a new page and view the full information. I did the selectionChanged event but I don't know How to get the news information from the binding?

请帮帮我.谢谢，

推荐答案

针对这些情况的典型 SelectionChanged 处理程序应如下所示:

a typical SelectionChanged handler for these cases should look like this:

private void lstItems_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
    if (lstItems.SelectedIndex == -1) return;

    var item = lstItems.SelectedItem as MyClass;
    // do navigation here

    lstItems.SelectedIndex = -1;
}

这是 WP7 Visual Studio 中 DataBound 模板的一部分.

This is a part of DataBound template in visual studio for WP7.

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