如何比较c＃中的两个datetimepicker值

我有一个Windows Form应用程序的问题，它有两个DateTimePicker控件显示“出生日期”和“加入日期” 。

我想比较这些控制的值，使得出生日期应不小于且不大于且不应小于等于且不大于且不应相等……

我怎样才能做到这一点？

Answer 1

试试这个代码

 DateTimePicker dtBDay = new DateTimePicker(); dtBDay.Value = DateTime.Now.AddYears(-5); DateTimePicker dtJoin = new DateTimePicker(); dtJoin.Value = DateTime.Now; if (dtBDay.Value >= dtJoin.Value) { throw new Exception("Date of Join cannot be less than or equal to Date of Birth"); } 

希望这会有所帮助

Answer 2

正如jbutler483所建议的那样

我试着这么做，但我最终无法得到任何解决方案，因为我自己的知识，我使用下面的代码

  private void dtpdob_ValueChanged(object sender, EventArgs e) { int year = DateTime.Today.Year - dtpdob.Value.Year; int month = DateTime.Today.Month - dtpdob.Value.Month; int day = DateTime.Today.Day - dtpdob.Value.Day; var a = year.ToString(); var b = month.ToString(); var c = day.ToString(); if (day != 0 && month!=0 && year!=0) { if(day!=1) txtage.Text = a + " Years " + b + " Months " + c + " Days "; else txtage.Text = a + " Years " + b + " Months " + c + " Day "; } else if (day == 0 && month == 0) txtage.Text = a + " Years "; else if (day == 0 && month != 0) txtage.Text = a + " Years " + b + " Months "; else txtage.Text = a + " Years " + b + " Months " + c + " Days "; }