zTree展開所有子節(jié)點

 方式一：

 // -------------------------------------加載時展開所有節(jié)點
    function expandAll() {
        var zTree = $.fn.zTree.getZTreeObj("moduleTree");
        expandNodes(zTree.getNodes());
    }
    function expandNodes(nodes) {
        if (!nodes) return;
        var zTree = $.fn.zTree.getZTreeObj("moduleTree");
        for (var i=0, l=nodes.length; i<l; i++) {
            zTree.expandNode(nodes[i], true, false, false);
            if (nodes[i].isParent && nodes[i].zAsync) {
                expandNodes(nodes[i].children);
            } else {
                goAsync = true;
            }
        }
    }

            方式二：

// zTree加載時展開所有節(jié)點
function zTreeExpandAll(treeId,flag) {
expandFlag = flag ;
var treeObj = $.fn.zTree.getZTreeObj(treeId);
var nodes = treeObj.getNodesByFilter(function(node){ //自定義過濾條件
return ( node.isParent == true); //check_Child_State 用來判斷是否有子節(jié)點,0表示有，-1表示無
});
if (nodes.length>0) {
$.each(nodes,function(key,value){
//[節(jié)點數(shù)據(jù)][展開/折疊][全部子孫點/當(dāng)前節(jié)點][設(shè)置焦點][執(zhí)行回調(diào)函數(shù)？]
treeObj.expandNode(value, expandFlag, true, false,false);
}) ;
}
}