让计时器每2秒完成一次不同的任务C＃

Question

I'm trying to have the timer say a different line every 2 seconds instead of adding all of the text into the text box at once, I wanna give the user the opportunity to read the dialog instead of it all being added into the box at once. This is the code I have so far but it doesn't seem to output the text.

private void OaksSpeakingTimer_Tick(object sender, EventArgs e)
    {

        //Starting Oaks basic speaking timer
        OaksSpeakingTimer.Start();
        ProfessorTxt.Text += "LLLLLLL";
        OaksSpeakingTimer.Stop();
        OaksSpeakingTimer.Start();
        ProfessorTxt.Text += "\rrrrrrrrrrrrrrrrrrrrrrrrrrr.";
        OaksSpeakingTimer.Stop();
        OaksSpeakingTimer.Start();
        ProfessorTxt.Text += "\nttttttttttttttttttttttttttttttttttttttttt!";
        OaksSpeakingTimer.Stop();
    }

Answer 1

You could put all the intended text in a Queue<string> and dequeue the next string whenever the timer fires:

private Queue<string> messages = new Queue<string> 
{
    "LLLLLLL",
    "\rrrrrrrrrrrrrrrrrrrrrrrrrrr.",
    "\nttttttttttttttttttttttttttttttttttttttttt!"
};

private void OaksSpeakingTimer_Tick(object sender, EventArgs e)
{
    if (messages.Count == 0) 
    {
        OaksSpeakingTimer.Stop();
        return;
    }

    var message = messages.Dequeue();
    ProfessorTxt.Text += message;
}