Question

Windows Phone 8.0 Silverlight App。

我在MainPage.xaml.cs中有以下代码......

    protected async override void OnNavigatedTo(NavigationEventArgs e)
    {
        base.OnNavigatedTo(e);
        string htmlPage = "";
        string htmlPage2 = "";
        using (var client = new HttpClient())
        {
            htmlPage = await client.GetStringAsync("http://page1");
            htmlPage2 = await client.GetStringAsync("http://page2");
        }

        HtmlDocument htmlDocument = new HtmlDocument();
        htmlDocument.LoadHtml(htmlPage);

        foreach (var div in htmlDocument.DocumentNode.SelectNodes("//div[starts-with(@id, 'p66acd000')]"))
        {
            GameDeals newGameDeals = new GameDeals();
            newGameDeals.dealTitle = div.SelectSingleNode(".//h2//a").InnerText.Trim();
            newGameDeals.dealCover = div.SelectSingleNode("(.//img)[1]").Attributes["src"].Value;
            newGameDeals.dealPriceText = div.SelectSingleNode(".//a[@class= 'GExclusive']").InnerText.Trim();
            newGameDeals.dealPriceGold = div.SelectSingleNode(".//span[@class= 'GPrice ProductPrice']").InnerText.Trim();
            newGameDeals.dealPriceSilver = div.SelectSingleNode(".//span[@class= 'SPrice ProductPrice']").InnerText.Trim();
            gameDeals.Add(newGameDeals);
        }
        lstGameDeals.ItemsSource = gameDeals;

        HtmlDocument htmlDocument2 = new HtmlDocument();
        htmlDocument2.LoadHtml(htmlPage2);

        foreach (var div in htmlDocument2.DocumentNode.SelectNodes("//div[starts-with(@class, 'copyContainer')]"))
        {
            GameDeals newGameDeals = new GameDeals();
            newGameDeals.dealTitle = div.SelectSingleNode(".//h4").InnerText.Trim();
            newGameDeals.dealCover = div.SelectSingleNode("(.//img)[1]").Attributes["src"].Value;
        }
        lstGameDeals.ItemsSource = gameDeals;
    }

我从两个页面检索数据，但是，page2的内容不会传递给我的MainPage.xaml中的lstGameDeals。我可以使用两个foreach，还是有其他我在这里做错了？

感谢。

Answer 1

在第二个foreach之后，您使用lstGameDeals变量设置了gameDeals的ItemsSource，但我认为您要使用newGameDeals。在第二次预告之后尝试lstGameDeals.ItemsSource = newGameDeals ;。

htmlagilitypack和httpclient使用两个foreach语句

1 个答案: