$('#test').treegrid({
    title:'Folder Browser',
    width:500,
    height:300,
    rownumbers: true,
    url:#{someBean.dataUrl},
    idField:'id',
    treeField:'name',
    columns:[[
        {field:'name',title:'Name',width:160},
        {field:'size',title:'Size',width:80,align:'right'},
        {field:'date',title:'Modified Date',width:100}
    ]]
});