Winforms equivalent of javascript setTimeout

I know this is an old question but an alternative solution would be to use Task.Delay(delay).ContinueWith((task) => { /* Code */ });.

Thread.Sleep vs Task.Delay?

or there is await Task.Delay(delay);

https://social.msdn.microsoft.com/Forums/vstudio/en-US/345f0402-3af0-4f96-a501-073674883ba3/building-an-async-settimeout-function?forum=csharpgeneral

You can use a System.Timers.Timer: set AutoReset to false and use Start/Stop methods and create a handler for the Elapsed event.

Here's an example implementation in vb.net:

  Public Sub SetTimeout(act As Action, timeout as Integer)
    Dim aTimer As System.Timers.Timer
    aTimer = New System.Timers.Timer(1)
    ' Hook up the Elapsed event for the timer. 
    AddHandler aTimer.Elapsed, Sub () act
    aTimer.AutoReset = False
    aTimer.Enabled = True
  End Sub 

    public void setTimeout(Action TheAction, int Timeout)
    {
        Thread t = new Thread(
            () =>
            {
                Thread.Sleep(Timeout);
                TheAction.Invoke();
            }
        );
        t.Start();
    }