基于cookie实现zTree树刷新后展开状态不变

$(function() {

  //ztree设置

  varsetting = {

    data: {

      simpleData: {

        enable:true,

        idKey:"id",

        pIdKey:"pId",

        rootPId:null

      }

    },

    callback: {

      onExpand: onExpand,

      onCollapse: onCollapse

    }

  };

  $.ajax({

    type:"POST",

    url:"/Tech/TemplateTypeManage/GetData",

    success:function(data) {

      if(data && data.length != 0) {

        $.fn.zTree.init($("#tree"), setting, data);

        vartreeObj = $.fn.zTree.getZTreeObj("tree");

        varcookie = $.cookie("z_tree"+ window.location);

        if(cookie) {

          z_tree = JSON2.parse(cookie);

          for(vari = 0; i < z_tree.length; i++) {

            varnode = treeObj.getNodeByParam('id', z_tree[i])

            treeObj.expandNode(node,true,false)

          }

        }

      }

    }

  });

});//end $

functiononExpand(event, treeId, treeNode) {

  varcookie = $.cookie("z_tree"+ window.location);

  varz_tree =newArray();

  if(cookie) {

    z_tree = JSON2.parse(cookie);

  }

  if($.inArray(treeNode.id, z_tree) < 0) {

    z_tree.push(treeNode.id);

  }

  $.cookie("z_tree"+ window.location, JSON2.stringify(z_tree))

}

functiononCollapse(event, treeId, treeNode) {

  varcookie = $.cookie("z_tree"+ window.location);

  varz_tree =newArray();

  if(cookie) {

    z_tree = JSON2.parse(cookie);

  }

  varindex = $.inArray(treeNode.id, z_tree);

  z_tree.splice(index, 1);

  for(vari = 0; i < treeNode.children.length; i++) {

    index = $.inArray(treeNode.children[i].id, z_tree);

    if(index > -1) z_tree.splice(index, 1);

  }

  $.cookie("z_tree"+ window.location, JSON2.stringify(z_tree))

}