Calculating difference between two date in Years, Months and Days & Geting Age from DOB to current date in C# ASP .NET

==>> Some time we need calculate date in project i need get Year Month and Day from the date of birth to current date so i work on find this solution and now sharing with you .This is perfect solution for find difference between two date.



You need create asp .net  website and add page that having name DateDiffe.aspx . You paste the below code according to page extension :-


1.  ASPX PAGE CODE:-  


 <form id="form1" runat="server">
    <div>
   
        <table class="style1">
            <tr>
                <td>
                    Date 1</td>
                <td>
                    <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
                </td>
            </tr>
            <tr>
                <td>
                    Date 2</td>
                <td>
                    <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
                </td>
            </tr>
            <tr>
                <td>
                    &nbsp;</td>
                <td>
                    <asp:Button ID="DateDiffBtn" runat="server" Text="Click"
                        onclick="DateDiffBtn_Click" />
                </td>
            </tr>
            <tr>
                <td>
                    &nbsp;</td>
                <td>
                    &nbsp;</td>
            </tr>
            <tr>
                <td>
                    &nbsp;</td>
                <td>
                    <asp:Label ID="Label1" runat="server" Text=""></asp:Label>
                </td>
            </tr>
        </table>
   
    </div>
    </form>




2. ASPX.CS PAGE CODE:-  



using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

using System.Web.UI;
using System.Web.UI.WebControls;

public partial class DateDiffe : System.Web.UI.Page
{
    private int[] monthDay = new int[12] { 31, -1, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
    private DateTime fromDate;
    private DateTime toDate;
    private int year;
    private int month;
    private int day;
    protected void Page_Load(object sender, EventArgs e)
    {
        TextBox2.Text = DateTime.Now.Date.ToString();
    }
    protected void DateDiffBtn_Click(object sender, EventArgs e)
    {      
       

       
        DateTime dtDOB = new DateTime();

        dtDOB = Convert.ToDateTime(TextBox1.Text);
      
        int Year1 = dtDOB.Year;
        int Month1 = dtDOB.Month;
        int Date1 = dtDOB.Day;

        int Year2 = DateTime.Now.Year;
        int Month2 = DateTime.Now.Month;
        int Date2 = DateTime.Now.Day;

        int Month = 0;
        int Year = 0;
        int Date = 0;

       
       

        fromDate = Convert.ToDateTime(TextBox1.Text);
        toDate = Convert.ToDateTime(TextBox2.Text);


        //Day Calculation

        int increment = 0;
        if (this.fromDate.Day > this.toDate.Day)
        {
            increment = this.monthDay[this.fromDate.Month - 1];
        }



        if (increment == -1)
        {
            if (DateTime.IsLeapYear(this.fromDate.Year))
            {
                increment = 29;
            }
            else
            {
                increment = 28;
            }
        }



        if (increment != 0)
        {
            day = (this.toDate.Day + increment) - this.fromDate.Day;
            increment = 1;
        }
        else
        {
            day = this.toDate.Day - this.fromDate.Day;
        }



        //Month Calculation

        if ((this.fromDate.Month + increment) > this.toDate.Month)
        {
            this.month = (this.toDate.Month + 12) - (this.fromDate.Month + increment);
            increment = 1;
        }
        else
        {
            this.month = (this.toDate.Month) - (this.fromDate.Month + increment);
            increment = 0;
        }

        //Year Calculation

        this.year = this.toDate.Year - (this.fromDate.Year + increment);



        Label1.Text = year + "Year" + month + "Month" + day + "Day";

             
    }
}

Hope this will help you.........

Happy coding.............................