[RESOLVED] Array.pop()

[rogueblade]

Hey guys, lets say I have a data-grid like this:
----------------------------------
Select | Name | Age |
----------------------------------
checkbox | Bob | 12 |
----------------------------------
checkbox | Tim | 17 |
----------------------------------
checkbox | Joe | 15 |
----------------------------------

If I have a function where for every check box I tick, the function will take the age value of those persons and add them together, combining the age into one larger number.

var combinedAge:int;
function doIt():void {
   if (checkBox.selected) {
      combinedAge += int(mygrid.ageColumn);
   }
} 

So if I tick the check box for Bob and Tim, the function will take the values 12 and 17 and add them together resulting in a value of 29.




Now, at the same time, with this function, for every check box I tick, the function will take the names of those persons and add them into an array.

var storedNames:Array = new Array;
var combinedAge:int;
function doIt():void {
   if (checkBox.selected) {
      combinedAge += int(mygrid.ageColumn);
      storedNames.push(mygrid.nameColumn);
   }
} 

So if I tick the checkbox for Bob and Tim, the function will take their name values and add them into the 'storedNames' array resulting in (Bob, Tim).




Now, with this function, for every check box I UN-tick, the function will take the age value of those persons and subtract them from combined total age value.

var combinedAge:int;
function doIt():void {
   if (checkBox.selected) {
      combinedAge += int(mygrid.ageColumn);
   } else {
      combinedAge -= int(mygrid.ageColumn);
   }
} 

So if the check boxes are ticked for Bob and Tim, the combinedAge value will be 29. If I un-tick the check box for Bob, his age of 12 will now be subtracted from the combined age total resulting in a value of 17.




Now what I'm trying to achieve is this: When I un-tick check boxes, not only do I want to take the age values and subtract them from the combined age (which I have achieved in the above snippet). I want to also remove those persons from the the storedNames array.

var storedNames:Array = new Array;
var combinedAge:int;
function doIt():void {
   if (checkBox.selected) {
      combinedAge += int(mygrid.ageColumn);
      storedNames.push(mygrid.nameColumn);
   } else {
      combinedAge -= int(mygrid.ageColumn);
      storedNames.pop();
   }
} 

As you can imagine, in the above snippet, by using the pop method on the storedNames array, it results in the removal of the LAST name added and not the name corresponding to the un-ticked check box.

So looking at the grid again, if I ticked Bob and then Tim and then Joe and then went to un-tick Tim, Joe will be removed as he was the last name entered into the array when it is Tim I want to be "popped" from the array.

How can I write this function in a way that will result in the the removal of the correct persons name for when a check box is un-ticked?





Note that "mygrid" used in (mygrid.ageColumn) and (mygrid.nameColumn) is actually a longer piece of code used to get the data from the specified column for the currently selected row index.

[rogueblade]

Aha, a guy over at actionscript.org directing me the right way! What I needed was a splice instead of a pop.

var index:int = storedNames.indexOf(mygrid.ageColumn);  //placed in the else statement of the function
if (index > -1) 
   storedNames.splice(index, 1);