C#电视节目单展示案例

 

需求：将文件中的电视节目单信息展示到列表中

步骤一：搭建电视节目单实体类

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TVListProgram
{
    /// <summary>
    /// 电视节目单实体类
    /// </summary>
    public class TVList
    {
        /// <summary>
        /// 电视节目时间
        /// </summary>
        public string TVTime { get; set; }
        /// <summary>
        /// 电视节目频道
        /// </summary>
        public string Channel { get; set; }
        /// <summary>
        /// 电视节目名称
        /// </summary>
        public string TVName { get; set; }
       
    }
}

步骤二：搭建数据操作类。注意数据操作类的命名一般是在实体类后面加上Service

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;

namespace TVListProgram
{
    /// <summary>
    /// 电视节目单数据操作类
    /// </summary>
  public  class TVListService
    {
        /// <summary>
        /// 将文件对象封装到List集合中并返回
        /// </summary>
        /// <param name="path">节目单文件路径</param>
        /// <param name="tvDate">节目单日期</param>
        /// <returns>返回电视节目单和节目单日期</returns>
        public List<TVList> LoadTVList(string path,out string tvDate)
        {
            //创建文件流和文件读取器
            FileStream fs = new FileStream(path, FileMode.Open);
            StreamReader sr = new StreamReader(fs,Encoding.Default);
            tvDate = sr.ReadLine(); //读取文本第一行的电视节目日期
            sr.ReadLine();//读取空行
            //循环读取电视节目列表到最后一行终止
            string content = string.Empty;
            List<TVList> list = new List<TVList>();
            string[] array = null; //保存一行分割后的内容
            while (true)
            {
                content = sr.ReadLine();
                if (content == null || content.Length == 0)//读取到空的内容处，跳出循环
                {
                    break;
                }
                else
                {
                    array = content.Split(Convert.ToChar("#"));
                    list.Add(new TVList()
                    {
                        TVTime =array[0],
                        Channel=array[1],
                        TVName=array[2]
                    });
                }
            }
          
            //关闭文件流，读取器
            fs.Close();
            sr.Close();
            return list;
        }
    }
}
步骤三：加载按钮编写窗体程序

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

namespace TVListProgram
{
    public partial class FrmTVList : Form
    {
        public FrmTVList()
        {
            InitializeComponent();
            this.dgvTVList.AutoGenerateColumns = false;

        }
        TVListService objTVListService = new TVListService();
        private void dgvTVList_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {

        }

        private void btnLoadTVList_Click(object sender, EventArgs e)
        {
            OpenFileDialog ofd = new OpenFileDialog();
            DialogResult result = ofd.ShowDialog();
            if (result == DialogResult.OK)
            {
                string tvDate = string.Empty;
               List<TVList> list= objTVListService.LoadTVList(ofd.FileName,out tvDate);
              
                this.dgvTVList.DataSource = list;
                this.lblTVDate.Text = tvDate;
            }
        }
    }
}