In this post you can learn how to Make Countdown Timer in Visual Basic it is very easy task just take 3 buttons from tool box for start stop and reset after that you should use the below coding as per video instruction.
Public Class Form1
Dim ppspn As New TimeSpan()
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
ppspn = New TimeSpan(0, CInt("30"), 0)
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
ppspn = ppspn.Subtract(New TimeSpan(0, 0, 1))
Label1.Text = String.Format("{0} Mins : {1} Secs", ppspn.Minutes, ppspn.Seconds)
If ppspn.Minutes = 0 AndAlso ppspn.Seconds = 0 Then
Timer1.Stop()
MessageBox.Show("done")
End If
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Timer1.Start()
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Timer1.Stop()
End Sub
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Timer1.Stop()
Label1.Text = "0"
End Sub
End Class
