Question

I have an instance on my stage that I dragged from my library at design time. This instance links to a custom class who’s constructor takes an argument.

package
{
    import flash.display.MovieClip;
    import flash.media.Sound;

    public class PianoKey extends MovieClip
    {
        var note:Sound;

        public function PianoKey(note:Sound)
        {
            this.note = note;
        }
    }
}

Obviously, trying to run the the code as is yields the following argument count error:

ArgumentError: Error #1063: Argument
count mismatch on PianoKey(). Expected
1, got 0.

Is there any way to set arguments on an instance that has been manually dragged to the stage?

Answer 1

This may help you. Just little changes are required in Custom Class

package
{
    import flash.display.MovieClip;
    import flash.media.Sound;

    public class PianoKey extends MovieClip
    {
        var note:Sound;

        public function PianoKey(note:Sound=null)
        {
            if(note!=null)
            {
              this.note = note;
            } 
        }
    }
}