grid leaks memory in AW.all

There seems to be a memory leak in the AW.all array caused by adding and removing grid objects dynamically. For each grid object I create, an entry is added to AW.all. To remove that entry when I remove the grid from the DOM, I call

delete AW.all[id];

where 'id' is the id of my grid. However, there seem to be other <span> objects in AW.all that belong to the deleted grid, all with IDs of "awNN". For example:

AW.all['aw95'] = <span id="grid25-cell-4-14" class="aw-item-template aw-templates-cell aw-grid-cell...

The $owner field of this <span> object points back to my grid object (id = "grid25"), so my grid objects are never released. This leaks a lot of memory.

The pattern in the AW.all array is always like this:

AW.all['aw90]'= = null;
AW.all['aw91]'= = <span ...
AW.all['aw92]'= = null;
AW.all['aw93]'= = <span ...

... etc. And the <span> is always for the last cell in one of my deleted tables.

Is there something else I should be doing when I remove the grid from the DOM, so that all references to it are removed from the AW.all array?

Would this work?

AW.all = {id:0};

It seems extreme and I don't know if its safe.

I'm using AW 2.5.5.

> /javascript.forum.25145.2/clear-aw-controls-from-container.html

I'm aware of that. If you look at my post, you'll see that I am deleting the grid's entry in AW.all. The problem is that there are other entries in AW.all with id = "awNN" that seem to be leftover <span>'s from the creation of the grid.

I guess it happens when you set different templates for the grid cells and it looks like a bug in AW. I would suggest cleaning bad references with this code -

function removeRefs(){

    var i, r = AW.all;

    for (i in r){
        if (typeof(r[i])=='object' && !document.getElementById(i)){
            delete r[i];
        }
    }
}

Below is the code I'm using to prevent the leak. I don't think that my application should be responsible for the cleanup that is done by the code following the "delete other stuff..." comment. But without it, there is a big leak.

function cleanup_AW_all (gridToDelete)
{
    var gid = gridToDelete.getId();
    if (!AW.all[gid])
        return;

    delete AW.all[gid];

    // delete other stuff for the grid stored in AW.all
    for (var awid in AW.all) {
        var obj = AW.all[awid];
        if (obj && obj.$owner == gridToDelete)
            delete AW.all[awid];
    }
}

Thanks Alex. (I think our last posts overlapped). It looks like we came up with similar fixes. Maybe you could add this to your bug list to be fixed in a future release.