| 此程序是实例101的 劳烦帮我看看  提示错误是 DateAndTime. FirstDayOfWeek FirstWeekOfYear不存在
 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 Microsoft.VisualBasic;
 
 namespace WindowsFormsApplication32
 {
 public partial class Form1 : Form
 {
 public Form1()
 {
 InitializeComponent();
 }
 
 private void Form1_Load(object sender, EventArgs e)
 {
 textBox1.Text = DateTime.Now.ToString();
 textBox2.Text = "2012-10-01 00:00:00";
 textBox1.ReadOnly = true;
 textBox2.ReadOnly = true;
 this.timer1.Start();
 }
 
 private void timer1_Tick(object sender, EventArgs e)
 {
 DateTime timeend = Convert.ToDateTime(textBox2.Text);//设置结束时间
 textBox1.Text = DateTime.Now.ToString();//设置当前时间
 
 
 string timeday = DateAndTime.DateDiff("d", DateTime.Now, timeend, FirstDayOfWeek.Sunday, FirstWeekOfYear.FirstFourDays).ToString();
 this.label5.Text = timeday + "天";
 
 
 
 
 }
 }
 }
 |