Question

我正在尝试构建一个新闻Feed应用程序而且我在格式化结果时遇到了问题。我确定问题只是缺乏经验。我有两个主要问题。第一个是项目.summary.text从摘要中提取了一堆链接。

我遇到的另一个问题是加粗所有标题并改变它们的颜色。我也使用Rich文本框，这可能不是表示数据的最佳方式。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ServiceModel.Syndication;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Xml.Linq;
using System.IO;
using System.Net;
using System.Xml;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Ltest1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            string url = "  http://feeds.reuters.com/reuters/topNews";
            XmlReader reader = XmlReader.Create(url);
            SyndicationFeed feed = SyndicationFeed.Load(reader);
            reader.Close();
            foreach (SyndicationItem item in feed.Items)
            {
                Fodder_Box.SelectionStart = "Title".Length;
                Fodder_Box.SelectionColor = Color.Red;
                Fodder_Box.SelectionFont = new Font("Arial", 20, FontStyle.Bold);
                Fodder_Box.AppendText("Title: " + item.Title.Text + Environment.NewLine + Environment.NewLine);
                Fodder_Box.SelectionStart = "Summary".Length;
                Fodder_Box.SelectionColor = Color.Black;
                Fodder_Box.SelectionFont = new Font("Arial", 20, FontStyle.Regular);
                Fodder_Box.AppendText("Date: " + item.PublishDate.ToString("yyyy/MM/dd H:MM:ss") + Environment.NewLine + Environment.NewLine);
                Fodder_Box.AppendText("Summary: " + item.Summary.Text + Environment.NewLine);
                Fodder_Box.AppendText("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" + Environment.NewLine + Environment.NewLine);
            }
        }
    }
}

Answer 1

您可以使用与WebBrowser控件更加HTML友好的控件，而不是RichTextBox。然后你可以构建一个HTML字符串＆amp;用CSS格式化它。我们假设您在表单中添加了一个名为webBrowser的WebBrowser控件。然后，您可以使用以下内容替换当前的foreach循环：

var text = new StringBuilder();

foreach (SyndicationItem item in feed.Items)
{
    text.AppendFormat("<p style='font-family:arial;color:red;font-size:20;font-weight:bold;'>Title: {0}</p>", item.Title.Text);
    text.AppendLine("</br>");
    text.AppendLine("</br>");

    text.AppendFormat("<p style='font-family:arial;font-size:20;'>Date: {0:yyyy/MM/dd H:MM:ss}</p>", item.PublishDate);
    text.AppendLine("</br>");
    text.AppendLine("</br>");

    text.AppendFormat("<p style='font-family:arial;font-size:20;'>Summary: {0}</p>", item.Summary.Text);
    text.AppendLine("</br>");
    text.AppendLine("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");
    text.AppendLine("</br>");
    text.AppendLine("</br>");
}

webBrowser.DocumentText = text.ToString();

另见How to: Add Web Browser Capabilities to a Windows Forms Application

C＃RSS Syndication，如何以编程方式格式化文本

1 个答案: