fireInternet/res/extjs/examples/tree/check-nodes.json

[{
    "text": "To Do", 
    "cls": "folder",
    "expanded": true,
    "children": [{
        "text": "Go jogging",
        "leaf": true,
        "checked": true
    },{
        "text": "Take a nap",
        "leaf": true,
        "checked": false
    },{
        "text": "Climb Everest",
        "leaf": true,
        "checked": false
    }]
},{
    "text": "Grocery List",
    "cls": "folder",
    "children": [{
        "text": "Bananas",
        "leaf": true,
        "checked": false
    },{
        "text": "Milk",
        "leaf": true,
        "checked": false
    },{
        "text": "Cereal",
        "leaf": true,
        "checked": false
    },{
        "text": "Energy foods",
        "cls": "folder",
        "children": [{
            "text": "Coffee",
            "leaf": true,
            "checked": false
        },{
            "text": "Red Bull",
            "leaf": true,
            "checked": false
        }]
    }]
},{
    "text": "Remodel Project", 
    "cls": "folder",
    "children": [{
        "text": "Finish the budget",
        "leaf": true,
        "checked": false
    },{
        "text": "Call contractors",
        "leaf": true,
        "checked": false
    },{
        "text": "Choose design",
        "leaf": true,
        "checked": false
    }]
}]