How i get Birthdate using age in javascript or asp.net

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ASP.NET

Javascript

Hi Friends,

How i get Birthdate using age in javascript or asp.net.

Thanks in Advance

Posted 4-Jun-12 20:09pm

Nilesh Patil Kolhapur

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3 solutions

Solution 2

try like this

C#

protected void Button1_Click(object sender, EventArgs e)
  {
      int year = DateTime.Now.Year;
      int age = Convert.ToInt32(TextBox1.Text);
      int dobyear = year - age;
      int  date = DateTime.Now.Day ;
      int agedate = 0;//here enter days
      int dobdate = date - agedate;
      int month = DateTime.Now.Month;
      int agemonth = 0;//enter months
      int dobmonth = month - agemonth;
      Response.Write("Your Date Of Birth Is" + dobyear + "&nbsp;&nbsp;" + dobmonth + "&nbsp;&nbsp;" + dobdate);


  }

Posted 4-Jun-12 20:29pm

vangapally Naveen Kumar

Solution 1

JS:Function

C#

//Calculate Age (DOB)-----------------------------------------------------------------------
function ValidateFormNew(inputFieldId, outputFieldId)
{
    var age;
    var input = document.getElementById(inputFieldId).value;
    var pyear = parseInt(input.substring(6,10));
    var pmonth = parseInt(input.substring(3,5)) - 1;
    var pday = parseInt(input.substring(0,2));
    today = new Date();
    year = today.getFullYear() ;
    month = today.getMonth();
    day = today.getDate();
    if ( month < pmonth )
    {
        age = year - pyear - 1;
    }
    else if ( month > pmonth )
    {
        age = year - pyear;
    }
    else if ( month == pmonth )
    {
        if ( day < pday )
        {
            age = year - pyear - 1;
        }
        else if ( day > pday )
        {
            age = year - pyear;
        }
        else if ( day == pday )
        {
            age = year - pyear;
        }
    }
    if (age != undefined)
    {
        document.getElementById(outputFieldId).value = age;
    }
    ValidateForm(inputFieldId);
}

-------------------------------------------------

Server Side:

TxtMDOB.Attributes.Add("Onfocusout", "ValidateFormNew('" & TxtMDOB.ClientID & "','" & TxtMAge.ClientID & "');")

Posted 4-Jun-12 20:21pm

Jimmy Darji

Comments

Nilesh Patil Kolhapur 5-Jun-12 2:39am

Hello Jimmy i dont want age i want birthdate using age

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Nilesh Patil Kolhapur · Accepted Answer · 2012-06-04T21:09:00

Hi Frnds,

Thanks For your reply
I solved it My self using javascript

Javscript Code

JavaScript

function GetBirthDate() {
            var yr = document.getElementById("txtYear").value.replace(/^\s+|\s+$/g, "");
            var mn = document.getElementById("txtMonth").value.replace(/^\s+|\s+$/g, "");
            var dy = document.getElementById("txtDay").value.replace(/^\s+|\s+$/g, "");
            if (dy < 10) { dy = '0' + dy } if (mn < 10) { mn = '0' + mn }
            alert(new Date(new Date().getFullYear() - yr, new Date().getMonth()  - mn , (new Date().getDay()+3)-dy));
        }

XML

<input id="txtYear" onkeyup="GetBirthDate()" type="text" />
    <input id="txtMonth" onkeyup="GetBirthDate()"type="text" />
    <input id="txtDay" onkeyup="GetBirthDate()" type="text" />

Thank you