如何通過dateTimePicker的的ValueChanged計算年齡年，月和日C＃

Question

我使用DateTimePicker，我使用此代碼來計算年齡：

private void dateTimePicker2_ValueChanged(object sender, EventArgs e) 
{ 
    // CurrentYear - BirthDate 
    int Age = DateTime.Today.Year - dateTimePicker2.Value.Year; 

    textBox11.Text = Age.ToString(); 
} 

我想計算年齡的年，月，日時DateTimePicker的價值變化。

Answer 1

在你的例子中，它只計算一年，下面的代碼會給你年，月和日的年齡。

CODE：

private void dateTimePicker2_ValueChanged(object sender, EventArgs e) 
{ 
    // CurrentYear - BirthDate 
    DateTime startTime = Convert.ToDateTime(dateTimePicker2.Value); 
    DateTime endTime = DateTime.Today; 
    TimeSpan span = endTime.Subtract(startTime); 
    var totalDays = span.TotalDays; 
    var totalYears = Math.Truncate(totalDays/365); 
    var totalMonths = Math.Truncate((totalDays % 365)/30); 
    var remainingDays = Math.Truncate((totalDays % 365) % 30); 
    textBox11.Text = string.Format("{0} year(s), {1} month(s) and {2} day(s)", totalYears, totalMonths, remainingDays); 
}