DateEdit控件的使用

1、将字符串转化为DateTime类型，yyyy-MM-dd HH:mm:ss

string bt = gridView1.GetRowCellValue(index, "BeginTime").ToString();

string begintime1 = (Convert.ToDateTime(bt)).ToString("yyyy-MM-dd HH:mm:ss.fff");
DateTime BeginTime1 = Convert.ToDateTime(begintime1);

2、如何在DateEdit控件上显示精确到时分秒

3、DateTime类型的相加减

  DateTime cuttime= ShopDay.AddDays(day).AddHours(hour ).AddMinutes (minute );