Tree.setChecked method is taking more time,

Hi,

I am using Gxt3.1 tree with checkbox. i am using tree.setChecked(model,CheckState.CHECKED); method to enable the checkbox.I'm having 18000 records ( treeStore.getAll().size() )in tree. Its taking near 6 mins to enable all the checkbox. Any suggestion would be greatefull.



<CODE>

List<BpuTreeModel> all= tree.getStore().getAll();

for (BpuTreeModel model : all) {

if(model.isCheck()){

tree.setChecked(model,CheckState.CHECKED);

}

}

</CODE>





Thanks in Advance.

Tree.setChecked method is taking more time,