iterate all tree nodes and set check box Dynamics Ax 2012

Public void setCheckbox()

{

    TreeItemIdx                         treeItemIdxOU,treeItemIdxChild;

    FormTreeItem                        formTreeItem,selectedTreeItem;

    Map en = new Map(Types::Integer,Types::Int64) ;

    MapEnumerator   me;

    int childcount=1;

    ImageRes     stateImage;

    ListEnumerator listEnumrOU, listEnumr;

    imageListAppl_checkbox = new ImageListAppl_checkbox();

    treeItemIdxOU = ResourceGroupTree.getChild(ResourceGroupTree.getRoot());

    en.insert(childcount,treeItemIdxOU);

    while (treeItemIdxOU)

    {

       if(ResourceGroupTree.getNextSibling(treeItemIdxOU))

        {

           childcount++;

           treeItemIdxOU =  ResourceGroupTree.getNextSibling(treeItemIdxOU);

           en.insert(childcount, treeItemIdxOU);

        }

        else

        {

            break;

        }

    }

    me = en.getEnumerator();

    while(me.moveNext())

    {

        if(ResourceGroupTree.getChild(me.currentValue()))

        {

            treeItemIdxChild = ResourceGroupTree.getChild(me.currentValue());

            ResourceGroupTree.setStateImagelist(imageListAppl_checkbox.imageList());

            formTreeItem = ResourceGroupTree.getItem(treeItemIdxChild);

            stateImage = imageListAppl_checkbox.image(#ImageCheckNone);

            formTreeItem.stateImage(stateImage);

            ResourceGroupTree.setItem(formTreeItem);

            

        }

        while(treeItemIdxChild)

        {

            if(ResourceGroupTree.getNextSibling(treeItemIdxChild))

            {

                treeItemIdxChild = ResourceGroupTree.getNextSibling(treeItemIdxChild);

                ResourceGroupTree.setStateImagelist(imageListAppl_checkbox.imageList());

                formTreeItem = ResourceGroupTree.getItem(treeItemIdxChild);

                stateImage = imageListAppl_checkbox.image(#ImageCheckNone);

                formTreeItem.stateImage(stateImage);

                ResourceGroupTree.setItem(formTreeItem);

               

            }

            else

            {

                break;

            }

        }

       // me.moveNext();

    }

}