Window form opacity .. How to control?

Question

I have a single form window application now I want to change the form opacity when application runs. Means when application run it will show low opacity form and as time increse it will show complete form with 100 opacity. So how to do that. (should I use timer control to control opacity, if yes then how????)

Answer 1

in constructor of the form you can write something like this.

this.Opacity = .1;
timer.Interval = new TimeSpan(0, 0, intervalinminutes);
timer.Tick += ChangeOpacity;
timer.Start();

And then define a method like this

void ChangeOpacity(object sender, EventArgs e)
{
    this.Opacity += .10; //replace.10 with whatever you want
    if(this.Opacity == 1)
        timer.Stop();
}