getOpenItems

returns ids of the opened branches

array

an array of ids

Example

tree = webix.ui({
        view:"tree",
        ...
})
tree.getOpenItems();

For example, for the tree as in:

data: [
    {id:"root", value:"Cars", open:true, data:[
        { id:"1", open:true, value:"Toyota", data:[
            { id:"1.1", value:"Avalon" },
            { id:"1.2", value:"Corolla" },
            { id:"1.3", value:"Camry" }
        ]},
        { id:"2", value:"Skoda", open:true, data:[
            { id:"2.1", value:"Octavia" },
            { id:"2.2", value:"Superb" }
        ]}
    ]}
]

the method returns the following array:

["1", "2", "root"]

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