Question

我正在开发一个显示新闻标题的Windows窗体应用程序C＃。到目前为止，我只能展示第一个冠军头衔。我希望我的应用程序在20秒后显示下一个标题，依此类推。如果我用完了标题，它将再次回到顶部。到目前为止，我已经这样做了：

my.cnf

Answer 1

试试这个

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Xml;
using System.Xml.Linq;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        const string URL = "http://news.yahoo.com/rss/";
        string[] titles = null;
        int count = -1;
        public Form1()
        {
            InitializeComponent();
            timer1.Enabled = false;
            timer1.Tick += new System.EventHandler(this.timer1_Tick);
        }

        private void buttonEnd_Click(object sender, EventArgs e)
        {
            timer1.Enabled = false;
        }

        private void buttonStart_Click(object sender, EventArgs e)
        {
            timer1.Interval = 20000;
            count = -1;
            timer1.Enabled = true;

        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            if ((count == -1) || (count >= titles.Count()))
            {
                GetFeeds();
                count = 0;
            }
            textBox1.Text = titles[count++];

        }
        public void GetFeeds()
        {
            timer1.Enabled = false;
            XDocument doc = XDocument.Load(URL);
            titles = doc.Descendants("item").Select(x => (string)x.Element("title")).ToArray();
            timer1.Enabled = true;
        }
    }


}

如何在C＃中用XML显示一段时间后的不同属性？

1 个答案: