我在SharePoint中很容易做到这一点,但我似乎无法弄清楚如何在ASP.NET中这样做。我只想在Weather.com(http://www.weather.com/rss/national/rss_nwf_rss.xml?cm_ven=NWF&cm_cat=rss&par=NWF_rss)等网站上显示一些简单的RSS源。在每个例子中,我都看到他们继续连接数据库并添加所有这些看似无聊的额外内容。当然,必须有一种简单的方法来添加您的URL并绑定到Listview / Gridview来显示数据。你能救我吗?
答案 0 :(得分:1)
我会添加一个转发器来填充RSS中的项目,并使用Syndication(System.ServiceModel.Syndication)。我选择了中继器,因为它具有非常灵活的布局。如果您愿意,可以使用ListView或GridView。我的标记看起来像这样:
<asp:Repeater ID="rptRSS" runat="server" OnItemDataBound="rptRSS_ItemDataBound">
<HeaderTemplate>
<table class="tablerss">
</HeaderTemplate>
<ItemTemplate>
<tr>
<td class="rsstitle">
<asp:Label ID="lblRSSTitle" runat="server" CssClass="rsshead"></asp:Label>
</td>
</tr>
<tr>
<td>
<asp:HyperLink ID="lnkArticle" runat="server"></asp:HyperLink>
</td>
</tr>
<tr>
<td class="rssdescription">
<asp:Label ID="lblDescription" runat="server"></asp:Label>
</td>
</tr>
</ItemTemplate>
<FooterTemplate>
</table>
<br />
</FooterTemplate>
</asp:Repeater>
在我的代码中,我有:
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
LoadRSS();
}
}
protected void rptRSS_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
HyperLink lnkArticle = (HyperLink)e.Item.FindControl("lnkArticle");
Label lblDescription = (Label)e.Item.FindControl("lblDescription");
Label lblRSSTitle = (Label)e.Item.FindControl("lblRSSTitle");
SyndicationItem item = (SyndicationItem)e.Item.DataItem;
lnkArticle.Text = item.Title.Text;
lnkArticle.NavigateUrl = item.Links[0].Uri.ToString(); ;
lblRSSTitle.Text = item.Title.Text;
lblDescription.Text = item.Summary.Text;
}
}
private void LoadRSS()
{
List<SyndicationItem> lstSynItem = new List<SyndicationItem>();
string uri = "http://www.weather.com/rss/national/rss_nwf_rss.xml?cm_ven=NWF&cm_cat=rss&par=NWF_rss";
SyndicationFeed myRss = SyndicationFeed.Load(XmlReader.Create(uri));
foreach (SyndicationItem item in myRss.Items)
{
lstSynItem.Add(item);
}
rptRSS.DataSource = lstSynItem;
rptRSS.DataBind();
}
Scott Michell有一些很好的文章,虽然它们没有更新,但仍然有助于开始探索RSS!