C#

Marc Clifton wrote:

qualifies as "something on the next level"

public class CPTest_ChangedEvent: CPTest {
    TextBox tb1=new TextBox();
    TextBox tb2=new TextBox();
    System.Windows.Forms.Timer timer=new System.Windows.Forms.Timer();

    public override void Run() {
        tb1.Text="1";
        tb2.Text="1";
        tb1.TextChanged+=new EventHandler(tb1_TextChanged);
        tb2.TextChanged+=new EventHandler(tb2_TextChanged);
        timer.Interval=1000;
        timer.Tick+=new EventHandler(timer_Tick);
        timer.Start();

    }

    private void tb1_TextChanged(object sender, EventArgs e) {
        string s=tb1.Text;
        log("tb1_TextChanged: "+s);
        double i1=double.Parse(s);
        double i2=i1*i1;
        tb2.Text=i2.ToString();
    }

    private void tb2_TextChanged(object sender, EventArgs e) {
        string s=tb2.Text;
        log("tb2_TextChanged: "+s);
        double i2=double.Parse(s);
        double i1=Math.Sqrt(i2);
        tb1.Text=i1.ToString();
    }

    private void timer_Tick(object sender, EventArgs e) {
        string s=tb2.Text;
        double i2=double.Parse(s)+1;
        tb2.Text=i2.ToString();
        if (i2>100) timer.Stop();
    }
}

void myButton_Click(object sender, EventArgs e) {
    Label label=new Label();
    label.Text="my button got clicked";
    label.Location=new Point(x, y);
    y+=30;
    this.Controls.Add(label);
}