Create An Age Calculator Using C# Application

In this article, I am going to show you a simple Age Calcualtor, using C# Application. Here, you are able to calculate your age, using C# Windows Application code.

This is not a perfect Age Calculator but you are able to perform most of the operations like calculating your current age. Please follow the steps given below to create an Age calculator, using C# Application.

Step 1

Open your Visual Studio, create a New Project and name it Age Calculator.

 

Step 2

Click OK button, which redirects you to the Next Page, where you are able to create a page. 

 

 

Step 3

Change the form text property of an Age Calculator, because we don’t want our Application to have the title Form1 when it starts. 

 

 

 

Step 4

Design your page accordingly and add a tooltip in the page given below.

 

 

 

Step 5

Change the button name and change all textBox names. Afterwards, double click on the button and write down the code.

private void btnCalculateAge_Click(object sender, EventArgs e) {
    DateTime dateOfBirth;
    DateTime.TryParse(txtDOB.Text, out dateOfBirth);
    DateTime currentDate = DateTime.Now;
    TimeSpan difference = currentDate.Subtract(dateOfBirth);
    DateTime age = DateTime.MinValue + difference;
    int ageInYears = age.Year - 1;
    int ageInMonths = age.Month - 1;
    int ageInDays = age.Day - 1;
    txtAgeInYear.Text = (ageInYears).ToString();
    txtAgeInMonth.Text = (ageInMonths).ToString();
    txtAgeInDays.Text = (ageInDays).ToString();
}
private void btnCalculateAge_MouseMove(object sender, MouseEventArgs e) {
    toolTip1.SetToolTip(this.btnCalculateAge, "Enter to Calculate Your Age");
}
private void txtDOB_MouseHover(object sender, EventArgs e) {
    toolTip1.SetToolTip(this.txtDOB, "Enter your Birth Date");
}
private void btnExit_Click(object sender, EventArgs e) {
    Application.Exit();
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e) {
    DialogResult result;
    result = MessageBox.Show("Do you realy want to close", "Confirmation", MessageBoxButtons.YesNo);
    if (result == DialogResult.No) {
        e.Cancel = true;
    }
}

Once you enter the Date of Birth, It will show you the current age

Example : My Date of Birth : 03/06/1991

Output:  25 years 11 months 13 days