从XmlDocument获取前5个节点

Question

I need help getting the first five nodes from feedSource

        XmlDocument feedSource = FeedSource;
        if (feedSource != null)
        {
            Rss.DataSource = feedSource.SelectNodes("//item")
            Rss.DataBind();
        }

I've seen in other examples that i should be able to use

         Rss.DataSource = feedSource.SelectNodes("//item")[position() <= 5]
         Rss.DataBind();

but that doesn't work. Any help would be appreciated.

Answer 1

Try this

Rss.DataSource = feedSource.SelectNodes("//item[position() <= 5]");

That [] part belongs to the XPath query, not to the C# part.