Create Reminder program for c# windows App

 public MainWindow()
        {
timer1.Interval = 1000;
timer1.Enabled = true;
timer1.Tick += new System.EventHandler (OnTimerEvent);
        }


private void OnTimerEvent(object sender, EventArgs e)
{
    if(DateTime.Now==Remintingtime)
     {
    Playsound();
     }
}

private void Form1_Load(object sender, System.EventArgs e)
{
timer1.start();
}