2d/multidimensional array to display a grid

hi all

 

i've been trying while it's not working... think it's because flash has way of declaring arrays don't get... looked around, managed find examples missing because results negative...

 

i want simple 3x4 grid of objects loaded library... code this

 

public class broadcast extends sprite

          {

 

 

                    var cols:number = 3;

                    var rows:number = 4;

                    var i:number;

                    var j:number;

                    var size:number = 10;

 

 

                    public function broadcast():void

                    {

 

 

                              if (stage)

                              {

                                        init();

                              }

                              else

                              {

                                        addeventlistener(event.added_to_stage, init);

                              }

                    }

 

 

                    private function init(e:event = null):void

                    {

                              removeeventlistener(event.added_to_stage, init);

 

                              var mainarr:array = new array(cols);

                              (i = 0; < cols; i++)

                              {

                              mainarr[i] = new array(rows);

                              trace (mainarr); //just feedback

                              (j = 0; j < cols; j++)

                              {

                              mainarr[i][j] = new checkbox(this,j*size,j*size,"",onbtnclick);

                              }

                              }

 

 

so 3 checkbox objs each traslated of 10(size); diagonal line of obj, instead of grid; suspect obj created 1 on top of other, 1 unique line...

 

any idea show others too?

the reason 3 showing versus 4 because using "cols" both loops rather thah cols , rows.

 

why getting diagonal escapes me, have suspiscions around doing checkbox() instantiation.  far can tell, checkbox constructor not take arguments, cannot see how without errors.  still, assuming do, purpose of using j*size twice way do?  suspect need " " invloved in there.

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