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

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

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  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 "; }