private void button1_Click(object sender, EventArgs e)
{
DateTime dob = new DateTime();
textBox1.Text = dob.ToString();
int age;
age = Convert.ToInt32(textbox2.Text);
age = DateTime.Now.Year - dob.Year;
if (DateTime.Now.DayOfYear < dob.DayOfYear)
age = age - 1;
}
如何从dob计算年龄。这是我的form.c.cs.any的想法
答案 0 :(得分:7)
您可以使用TimeSpan计算它,如:
DateTime dob = .....
DateTime Today = DateTime.Now;
TimeSpan ts = Today - dob;
DateTime Age = DateTime.MinValue + ts;
// note: MinValue is 1/1/1 so we have to subtract...
int Years = Age.Year - 1;
int Months = Age.Month - 1;
int Days = Age.Day - 1;
答案 1 :(得分:7)
DateTime today = DateTime.Today;
int age = today.Year - bday.Year;
if (bday > today.AddYears(-age))
age--;
答案 2 :(得分:0)
[更新]:要考虑闰年,请使用365.242 instead of 365。你应该很好till the year 2799 I believe。
DateTime有一个运算符重载,当你使用减法运算符时,你得到一个TimeSpan实例。
所以你会这样做:
DateTime dob = ..
TimeSpan tm = DateTime.Now - dob;
int years = ((tm.Days)/365);
理想情况下,您的代码应如下所示:
private void button1_Click(object sender, EventArgs e)
{
DateTime dob = //get this some somewhere..
textBox1.Text = dob.ToString();
TimeSpan tm = (DateTime.Now - dob);
int age = (tm.Days/365) ;
}
TimeSpan结构代表一个时间间隔,它具有Days
,Hours
,Seconds
等属性,因此您可以根据需要使用它们。