C# LINQ到XML解析多个Uri';s到单个超链接按钮
我在将解析的字符串传递给按钮单击事件时遇到问题。这个问题在这个线程中得到了解决,但现在还有另一个小问题,就是LINQ到XML。我正在制作一个页面,该页面将显示我制作的所有应用程序,并将使用我将在服务器上托管的XML进行更新。在那个页面上,我正在解析应用程序的图标、标题、价格和市场Uri。我将应用程序的Uri和标题绑定到一个hyperlinkbutton,但问题是列表中的每个hyperlinkbutton都会将我带到同一个市场页面。如何修复它,使每个超链接按钮都能导航到不同的页面 代码如下:C# LINQ到XML解析多个Uri';s到单个超链接按钮,c#,windows-phone-7.1,windows-phone-7,C#,Windows Phone 7.1,Windows Phone 7,我在将解析的字符串传递给按钮单击事件时遇到问题。这个问题在这个线程中得到了解决,但现在还有另一个小问题,就是LINQ到XML。我正在制作一个页面,该页面将显示我制作的所有应用程序,并将使用我将在服务器上托管的XML进行更新。在那个页面上,我正在解析应用程序的图标、标题、价格和市场Uri。我将应用程序的Uri和标题绑定到一个hyperlinkbutton,但问题是列表中的每个hyperlinkbutton都会将我带到同一个市场页面。如何修复它,使每个超链接按钮都能导航到不同的页面 代码如下:
public partial class MorePage : PhoneApplicationPage
{
private string appLink;
public MorePage()
{
InitializeComponent();
}
protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
WebClient client = new WebClient();
Uri uritoXML = new Uri("http://www.allanhaapalainen.com/AppsXML/MorePageXML.xml", UriKind.RelativeOrAbsolute);
client.DownloadStringCompleted += new DownloadStringCompletedEventHandler(client_DownloadStringCompleted);
client.DownloadStringAsync(uritoXML);
base.OnNavigatedTo(e);
}
public void client_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
XDocument moreApps = XDocument.Parse(e.Result);
morePageAppList.ItemsSource = from Apps in moreApps.Descendants("App")
select new MoreApps
{
MoreImage = Apps.Element("link").Value,
Price = Apps.Element("price").Value,
Title = Apps.Element("title").Value
};
var attribute = (from Apps in moreApps.Descendants("App")
select new MoreApps
{
AppAttribute = (string)Apps.Attribute("id").Value
}).FirstOrDefault();
string appAttr = attribute.AppAttribute;
var link = (from Apps in moreApps.Descendants("App")
where Apps.Attribute("id").Value == appAttr
select new MoreApps
{
AppUri = (string)Apps.Element("marketplace").Value
}).FirstOrDefault();
appLink = link.AppUri;
}
private void App_Name_Click(object sender, RoutedEventArgs e)
{
ShowMarket(appLink);
}
private void ShowMarket(string id)
{
MarketplaceDetailTask marketplaceDetailTask = new MarketplaceDetailTask();
marketplaceDetailTask.ContentIdentifier = id;
marketplaceDetailTask.Show();
}
}
以及XAML:
<ListBox Height="500" Width="Auto" Name="morePageAppList" Margin="0,0,0,0" ItemsSource="{Binding}">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal" Height="173">
<Image Source="{Binding MoreImage}" Height="Auto" Width="Auto" />
<StackPanel Orientation="Vertical">
<HyperlinkButton Name="appName" Content="{Binding Title}" Margin="15,60,0,0" Click="App_Name_Click" />
<TextBlock Name="price" Text="{Binding Price}" Margin="28,0,0,0" Foreground="#FFBD0000" />
</StackPanel>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
正如我在上一篇文章中提到的,您可以使用tag参数。更新您的数据模板
<DataTemplate>
<StackPanel Orientation="Horizontal" Height="173">
<Image Source="{Binding MoreImage}" Height="Auto" Width="Auto" />
<StackPanel Orientation="Vertical">
<HyperlinkButton Name="appName" Content="{Binding Title}" Tag="{Binding}" Margin="15,60,0,0" Click="App_Name_Click" />
<TextBlock Name="price" Text="{Binding Price}" Margin="28,0,0,0" Foreground="#FFBD0000" />
</StackPanel>
</StackPanel>
</DataTemplate>
Show the XAML for morePageAppListabove是列表框的XAML它似乎正在工作,但模拟器给出了一个市场错误。它显示的页面刚刚好之前。奇怪的我想,它可能会在真手机上工作。再次感谢你帮了我的忙!
private void App_Name_Click(object sender, RoutedEventArgs e)
{
var button = (HyperLinkButton)sender;
var selectedApp = (MoreApps)button.Tag;
ShowMarket(selectedApp.AppUri);
}