Asyn Tree :Loading icon not visible on expand event

[novice123]

Hi ..I am using Async Tree(binder,store ,loader) for one the modules.When the node is expanded the loading icon is not visible.What would b the proper way of setting it.
I have checked that TreeItemUI has that method.By deafult it is not coming.
If anybody could give me some directions,it would be really helpfull.
Thanks in advance..

[novice123]

hi .. It should be minor issue..Can anyone help in this.

[villemustonen]

Maybe this will help

treeBinder.setMask(true);

[novice123]

Thanks for the reply..
I solved the above issue adding following entry in my css for a already existing treeimage (.tree-image-1) class.

.tree-image-1 {
background: url(../images/treeIcons/TreeImage1.png) no-repeat
center left !important;
}


.my-tree-loading .tree-image-1 {
background: url(../images/icons/wait.gif) no-repeat
center left !important;
}

wait.gif : is the loading image used while loading.Its a standard one.

I tried with treeBinder.setMask(true) also ,it shows the loading icon on whole tree but not on individual tree nodes (when they are expanded).