我正在尝试格式化并获取图像,文字等......以提供良好的外观和感觉。
XML是这样的:
xmlns:content="http://purl.org/rss/1.0/modules/content/"
内容是:
<content:encoded>
<![CDATA[
<p><a href="http://i2.wp.com/geekytheory.com/wp-content/uploads/2014/03/Screen-Shot- 2013-11-11-at-11.38.50.png"><img class="size-full wp-image-7447 aligncenter" alt="Screen Shot 2013-11-11 at 11.38.50" src="http://i2.wp.com/geekytheory.com/wp- content/uploads/2014/03/Screen-Shot-2013-11-11-at-11.38.5
]]>
<![CDATA[
0.png?resize=788%2C644" data-recalc-dims="1" /></a></p> <p style="text-align: justify">
</p>]]>
< /content:encoded>
首先,我将得到的是图片或示例:他在内容中:编码/ p / a / img / src
我尝试的代码是:
private ObservableCollection<RssItem> ParseXmlString(string xmlString)
{
XDocument xmlDoc = XDocument.Parse(xmlString);
XNamespace xmns = @"http://purl.org/dc/elements/1.1/";
XNamespace xmnsContent = @"http://purl.org/rss/1.0/modules/content/";
var itemsList = xmlDoc.Descendants("item").Select(i => new RssItem()
{
Author = i.Element(xmns + "creator").Value,
Title = i.Element("title").Value,
Description = i.Element("description").Value,
Content = i.Element(xmnsContent + "encoded").Value,
Image = i.Element(xmnsContent + "encoded").XPathSelectElement("//p//a//img[@src]").Value,
Date = DateTime.Parse(i.Element("pubDate").Value)
}).ToList();
return new ObservableCollection<RssItem>(itemsList);
}
Content = i.Element(xmnsContent +&#34;已编码&#34;)。值 为我提供所有内容,而不进行格式化:
对于exctract来自CData的图像或其他元素,我得到一个错误。 Image = i.Element(xmnsContent +&#34; encoded&#34;)。XPathSelectElement(&#34; // p // a // img [@src]&#34;)。 正在给出错误。
我也尝试过这种方式,但也给出了同样的错误。
Image = i.Element(xmnsContent+"encoded").Element("p").Element("a").Element("img").Attribute("src").Value
感谢所有人和问候!!
答案 0 :(得分:0)
最后使用FlowDocumentScrollViewer和XmlToXamlConverter,我得到了解决方案:
<FlowDocumentScrollViewer
Document="{Binding Content, Converter={StaticResource HtmlToFlowDocConverter}}"/>
我们需要添加转换器之后:
public object Convert(object value, Type targetType, object parameter,
CultureInfo culture)
{
var xaml = HtmlToXamlConverter.ConvertHtmlToXaml((string)value, true);
var flowDocument = XamlReader.Parse(xaml);
if (flowDocument is FlowDocument)
SubscribeToAllHyperlinks((FlowDocument)flowDocument);
return flowDocument;
}
private void SubscribeToAllHyperlinks(FlowDocument flowDocument)
{
var hyperlinks = GetVisuals(flowDocument).OfType<Hyperlink>();
foreach (var link in hyperlinks)
link.RequestNavigate += LinkRequestNavigate;
}
private static IEnumerable<DependencyObject> GetVisuals(DependencyObject root)
{
foreach (var child in
LogicalTreeHelper.GetChildren(root).OfType<DependencyObject>())
{
yield return child;
foreach (var descendants in GetVisuals(child))
yield return descendants;
}
}
private void LinkRequestNavigate(object sender,
System.Windows.Navigation.RequestNavigateEventArgs e)
{
Process.Start(new ProcessStartInfo(e.Uri.AbsoluteUri));
e.Handled = true;
}
public object ConvertBack(object value, Type targetType, object parameter,
CultureInfo culture)
{
throw new NotImplementedException();
}
}
最后,我们将添加来自here的XmlToXamlConverter和来自here的另一个。
另一篇有用的文章是this。
问候!