Get the age of a person

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HI I am using three drop downs to select the date the drop downs look return the values 1998 september 12

i am trying to calculate the age but get an error

C#

ddlMonth.DataSource = Enumerable.Range(1, 12).Select(a => new
               {
                   MonthName = DateTimeFormatInfo.CurrentInfo.GetMonthName(a),
                   MonthNumber = a
                   //DataTextField = DateTimeFormatInfo.CurrentInfo.GetMonthName(a),
                   //DataValueField = a
               }
               );

               //If this code is not working then try the above code in the loop.
               ddlMonth.DataTextField = "MonthName";
               ddlMonth.DataValueField = "MonthNumber";

               ddlMonth.DataBind();
               ddlYear.DataSource = Enumerable.Range(DateTime.Now.Year - 99, 100).Reverse();
               ddlYear.DataBind();
               ddlday.DataSource = Enumerable.Range(1, DateTime.DaysInMonth(DateTime.Now.Year, Convert.ToInt32(ddlMonth.SelectedValue)));
               ddlday.DataBind();
           }

       }
       protected void ddlMonth_SelectedIndexChanged(object sender, EventArgs e)
       {
           ddlday.DataSource = Enumerable.Range(1, DateTime.DaysInMonth(DateTime.Now.Year, Convert.ToInt32(ddlMonth.SelectedIndex + 1))); ddlday.DataBind();
       }

C#

private int _GetAge()
      {
          //int Age = Convert.ToInt32((DateTime.Now.Subtract().TotalDays / 365.25).ToString("#"));

          //ddlYear.SelectedValue.ToString();
          //ddlMonth.SelectedValue.ToString();
          //ddlday.SelectedValue.ToString();

          string age = (ddlYear.SelectedItem.ToString() + ddlMonth.SelectedItem.ToString() + ddlday.SelectedItem.ToString());

          age.Substring(2, age.Length - 2);
          //age = age.PadRight(13, 0);

          IDValidator dateSelect = new IDValidator(age.ToString());

          if (!dateSelect.get_IsValidDate(true))
              throw new ArgumentException("Date not Valid");
          return dateSelect.get_Age(DateTime.Now);


      }

Posted 30-Aug-12 3:02am

MarkNinja

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Comments

[no name] 30-Aug-12 9:04am

Are we supposed to guess what "an error" is?

Legor 30-Aug-12 9:06am

Whats the error. Improve the question please.

ridoy 30-Aug-12 10:01am

what is your error?

1 solution

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Christian Amado · Answer 1 · 2012-08-30T03:07:00

Solution 1

C#

DateTime today = DateTime.Today;  //  08/30/2012
DateTime birthday = DateTime.MinValue;
DateTime.TryParse(age, out birthday);//  08/30/2000
string actual_age = string.Empty;
if (birthday.DayOfYear <= today .DayOfYear)
   {
       actual_age  = (today .Year-birthday.Year).ToString();
   }
   else
   {
       actual_age  = (today .Year-birthday.Year- 1).ToString();
   }

Hope it helps.

Posted 30-Aug-12 3:07am

Christian Amado

Updated 30-Aug-12 6:03am

v5

Comments

Christian Amado 30-Aug-12 9:11am

@MarkNinja This is the simple way to get the age. The age variable you declared above as string =)

Christian Amado 30-Aug-12 12:00pm

Sorry the version1 had an error. TotalYears doesn't exists.