how to calculate date of birth given age

Carlos kambui

11y1.3kVisual Basic .NET

how to calculate date of birth given age using textbox to input age

7 Replies

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Upendra Pratap Shahi11y ago
Accepted answer
DateTime dob = Convert.ToDateTime("1988/12/20");
int age = CalculateOnlyAge(dob);

private static int CalculateOnlyAge(DateTime dateOfBirth)
{
int age = 0;
age = DateTime.Now.Year - dateOfBirth.Year;
if (DateTime.Now.DayOfYear < dateOfBirth.DayOfYear)
age = age - 1;
return age;
}

________________________
If works for you please "Accept Answer"
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Carlos kambui11y ago
Calculate date of birth given age
0
Upendra Pratap Shahi11y ago
What do you want in really?
Your problem is solved or not?
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Carlos kambui11y ago
now i want to know how to check date of birth given age i.e if you input your age in textbox dtpdop changes automatically
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Burak Seyhan11y ago
However I still believe better tool is datepicker, it's easy to use for question
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Upendra Pratap Shahi11y ago
Use below code for calculating your age..
Use datepicker for DOB..

string sDob=TextBox1.Text.ToString().Trim();//1988/12/20
DateTime dob = Convert.ToDateTime(sDob);
string text = CalculateYourAge(dob);

public string CalculateYourAge(DateTime Dob)
{
DateTime Now = DateTime.Now;
int Years = new DateTime(DateTime.Now.Subtract(Dob).Ticks).Year - 1;
DateTime PastYearDate = Dob.AddYears(Years);
int Months = 0;
for (int i = 1; i <= 12; i++)
{
if (PastYearDate.AddMonths(i) == Now)
{
Months = i;
break;
}
else if (PastYearDate.AddMonths(i) >= Now)
{
Months = i - 1;
break;
}
}
int Days = Now.Subtract(PastYearDate.AddMonths(Months)).Days;
int Hours = Now.Subtract(PastYearDate).Hours;
int Minutes = Now.Subtract(PastYearDate).Minutes;
int Seconds = Now.Subtract(PastYearDate).Seconds;
return String.Format("Age: {0} Year(s) {1} Month(s) {2} Day(s) {3} Hour(s) {4} Second(s)",
Years, Months, Days, Hours, Seconds);
}

_________________________________________
If works kindly accept the answer
0
Burak Seyhan11y ago
Hi first of all you should use datepicker then use TimeSpan. You need to extraction from selected date to DateTime.Now it equals your answer. Great day..
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