to calculate age of a person when a date from date time picker was selected

i've a date time picker used to enter date of birth of a person.there is also a textbox named 'txtage', to calculate the age of a particular person.

when i select a date from the date time picker, i want to automatically calculate and display the age in the 'txtage' textbox. how i do that?
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TimCotteeHead of Software ServicesCommented:
Hi lincyelias,

    Private Sub DateTimePicker1_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DateTimePicker1.ValueChanged
        Dim Years As Double = DateDiff(DateInterval.Month, DateTimePicker1.Value, Now()) / 12
        Dim Months As String = Int(DateDiff(DateInterval.Month, DateTimePicker1.Value, Now())) - Int(Years) * 12
        If Years < 0 Or Months < 0 Then
            TextBox1.Text = "Not yet born!!!"
            TextBox1.Text = Int(Years) & " Years, " & Months & " Months"
        End If
    End Sub

For example

Tim Cottee

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