Set values for elements of the treecheckbox

Webix JS
1

How to set values for elements of the “treecheckbox”:

...
grid = new webix.ui({
...
columns:[
...
{ id:"label",  header:"Stores",	   width:250, 
                        template:"{common.space()}{common.icon()}{common.treecheckbox()}{common.folder()} #label#"
                        //template:"{common.space()}{common.icon()}{common.folder()} #label#"
                    }
...
],
.....
ready:function() {
      this.checkItem(?);
Where to get IDs of grid data ?
}
2

if you want the first this.getFirstId();

http://docs.webix.com/api__link__ui.chart_getfirstid.html

If you need all - you can use “each” iterator

http://docs.webix.com/api__treestore_each.html

this.data.each(function(obj){
     this.checkItem(obj.id);
});
3

OK. Works. Thanks.