DateTimePicker控件(日期时间选择器)《笔记5》

DateTimePicker控件使用笔记

1. 如何取年限，时间的数据?
   关键词(Value)

 #region Value显示模式            label5.Text = "年限：" + dateTimePicker4.Value.Year.ToString();            label6.Text = "月限：" + dateTimePicker4.Value.Month.ToString();            label7.Text = "日期：" + dateTimePicker4.Value.Date.ToString();            label8.Text = "当天为几号：" + dateTimePicker4.Value.Day.ToString();            label9.Text = "星期：" + (int)dateTimePicker4.Value.DayOfWeek;            label10.Text = "小时：" + dateTimePicker4.Value.Hour.ToString();            label11.Text = "分钟：" + dateTimePicker4.Value.Minute.ToString();            label12.Text = "秒钟：" + dateTimePicker4.Value.Second.ToString();            label13.Text = "当天时间：" + dateTimePicker4.Value.TimeOfDay.ToString();            label14.Text = "毫秒：" + dateTimePicker4.Value.Millisecond.ToString();             #endregion

1. 如何设置DateTimePicker控件的显示格式？
   关键词(Format)
   Long（长日期格式），Short（短日期格式），Time（时间格式），Custom（自定义格式）

            #region 显示长日期和短日期            dateTimePicker1.Format = DateTimePickerFormat.Long;            dateTimePicker2.Format = DateTimePickerFormat.Short;             #endregion/**********************************************************/            #region 显示时间格式            dateTimePicker3.Format = DateTimePickerFormat.Time;            //设置控制时间属性ShowUpDown            dateTimePicker3.ShowUpDown = true;             #endregion/**********************************************************/            #region 显示自定义格式            dateTimePicker4.Format = DateTimePickerFormat.Custom;            //设置自定义显示时间CostomFormat            string Tim =     CultureInfo.CurrentCulture.DateTimeFormat.GetDayName(dateTimePicker4.Value.DayOfWeek);            dateTimePicker4.CustomFormat = "yyyy年,MM月,dd日" + "  " + Tim;            //或则            string TimeValue = dateTimePicker4.value.Tostring("yyyy年MM月dd日");            #endregion

1. 如何把DateTimePicker.Value.DayOfWeek返回的英文名称转换成中文名称？

   1、最直接的一种方法

 System.Globalization.CultureInfo.CurrentCulture.DateTimeFormat.GetDayName(dateTimePicker4.Value.DayOfWeek); //解析：命名空间.日期字符串格式设置.当前线程区域.日期时间格式.返回完整名称（获取当前的时间）

2、用数组的形式

string[] ZhuQi = new string[]{"星期日","星期一","星期二","星期三","星期四","星期五","星期六",};ConSole.WriteLine(ZhuQi[datetimeformat1.value.DayOfWeek]);

3、直接转换

int i = Convert.Toint32(datetimepicker1.value.DayOfWeek);int j = (int)datetimepicker1.value.DayOfWeek;

学习代码：

    private void DateTimepicker_Load(object sender, EventArgs e)        {            #region 显示长日期和短日期            dateTimePicker1.Format = DateTimePickerFormat.Long;            dateTimePicker2.Format = DateTimePickerFormat.Short;             #endregion            #region 显示时间格式            dateTimePicker3.Format = DateTimePickerFormat.Time;            //设置控制时间属性ShowUpDown            dateTimePicker3.ShowUpDown = true;             #endregion            #region 显示自定义格式            dateTimePicker4.Format = DateTimePickerFormat.Custom;            //设置自定义显示时间CostomFormat            string Tim = CultureInfo.CurrentCulture.DateTimeFormat.GetDayName(dateTimePicker4.Value.DayOfWeek);            dateTimePicker4.CustomFormat = "yyyy年,MM月,dd日" + "  " + Tim;            #endregion            #region 如何把DayOfWeek英文名称转换成中文(三种解决方法)            //一、最直接的一种            System.Globalization.CultureInfo.CurrentCulture.DateTimeFormat.GetDayName(dateTimePicker4.Value.DayOfWeek);             //解析：命名空间.日期字符串格式设置.当前线程区域.日期时间格式.返回完整名称（获取当前的时间）            //二、用数组的形式            string[] ZhouQi = new string[] {"星期日","星期一","星期二","星期三","星期四","星期五","星期六", };            Console.WriteLine(ZhouQi[Convert.ToInt32(dateTimePicker4.Value.DayOfWeek)]);            //三、直接转换            int i = Convert.ToInt32(dateTimePicker4.Value.DayOfWeek);            int j = (int)dateTimePicker4.Value.DayOfWeek;            #endregion            #region Value显示模式            label1.Text = "设置长日期时间";            label2.Text = "设置短日期时间";            label3.Text = "设置只显示时间";            label4.Text = "设置自定义时间";            label5.Text = "年限：" + dateTimePicker4.Value.Year.ToString();            label6.Text = "月限：" + dateTimePicker4.Value.Month.ToString();            label7.Text = "日期：" + dateTimePicker4.Value.Date.ToString();            label8.Text = "当天为几号：" + dateTimePicker4.Value.Day.ToString();            label9.Text = "星期：" + (int)dateTimePicker4.Value.DayOfWeek;            label10.Text = "小时：" + dateTimePicker4.Value.Hour.ToString();            label11.Text = "分钟：" + dateTimePicker4.Value.Minute.ToString();            label12.Text = "秒钟：" + dateTimePicker4.Value.Second.ToString();            label13.Text = "当天时间：" + dateTimePicker4.Value.TimeOfDay.ToString();            label14.Text = "毫秒：" + dateTimePicker4.Value.Millisecond.ToString();             #endregion            toolStripStatusLabel1.Text = DateTime.Now.Year.ToString() +"-"+ DateTime.Now.Month.ToString() +"-"+ DateTime.Now.Day.ToString();            toolStripStatusLabel3.Text = DateTime.Now.TimeOfDay.ToString();        }        private void dateTimePicker4_ValueChanged(object sender, EventArgs e)        {            #region 显示自定义格式            dateTimePicker4.Format = DateTimePickerFormat.Custom;            //设置自定义显示时间CostomFormat            string Tim = CultureInfo.CurrentCulture.DateTimeFormat.GetDayName(dateTimePicker4.Value.DayOfWeek);            dateTimePicker4.CustomFormat = "yyyy年,MM月,dd日" + "  " + Tim;            #endregion        }        private void timer1_Tick(object sender, EventArgs e)        {            toolStripStatusLabel1.Text = DateTime.Now.Year.ToString() + "-" + DateTime.Now.Month.ToString() + "-" + DateTime.Now.Day.ToString();            toolStripStatusLabel3.Text = DateTime.Now.Hour.ToString() + "." + DateTime.Now.Minute.ToString() + "." + DateTime.Now.Second.ToString();        }