我想用新的json数据替换jstree树的全部内容.
我正在使用jsTree 1.0从github下载2011年7月25日
说我有这个功能
function init_my_tree(my_json_data) { $("#demo1").jstree({ themes: { "theme": "classic","dots": false,"icons": true,"url": "//js.myliburl.com/jstree/themes/classic/style.css" },json : { data : my_json_data },plugins : [ "core","ui","themes","json" ] }); }
其中demo1指的是a
<div id="demo1"></div>
我想要做的是使用从我的服务器加载的新数据完全替换树.但是,为了这个问题,让我们假装我只想这样做
$(document).ready(function() { var text_data = '[{"title":"All","data":{"jstree":{"opened":true}},"children":[{"title":"Item 1","data":{"jstree":{}},"children":false,"li_attr":{"id":"1","class":"jstree-leaf","href":"#"},"a_attr":{"href":"#"}},{"title":"Item B","li_attr":{"id":"2","class":"jstree-last","a_attr":{"href":"#"}}],"li_attr":{"id":"0","a_attr":{"href":"#"}}]'; var my_json_data = $.parseJSON(text_data); init_my_tree(my_json_data); // initialize the tree view text_data = '[{"title":"Something Else","children":[{"title":"Item A",{"title":"Item 2","a_attr":{"href":"#"}}]'; my_json_data = $.parseJSON(text_data); init_my_tree(my_json_data); // re-initialize the tree view to load with new data });
我正在做这个基于这个链接,Ivan似乎主张这个
http://groups.google.com/group/jstree/browse_thread/thread/b40a1f0ab0f9a66b?fwc=2
然而,发生的情况是,在第二次调用init时,我最终在firebug中收到这个错误
instance._get_settings is not a function
我试着打电话
$("#demo1").jstree("destroy");
但这并没有解决我的问题.
如何用新的json数据替换整个树?
解决方法
这是我如何解决这个问题:
– 将树的所有绑定和初始化包装在一个函数中
– 从我的document.ready函数调用此函数(这将处理树的初始设置)
– 在我的ajax调用的成功回调中,我销毁树,然后再次调用该函数
– 将树的所有绑定和初始化包装在一个函数中
– 从我的document.ready函数调用此函数(这将处理树的初始设置)
– 在我的ajax调用的成功回调中,我销毁树,然后再次调用该函数
以下是代码:
function loadTargetTree() { $("#target-book-tree").bind("select_node.jstree",function (e,data) { data.rslt.obj; // the LI node that was clicked selectedTargetID = data.rslt.obj.attr("id"); if(data.rslt.obj.hasClass("book") || data.rslt.obj.hasClass("section")) { targetChapterIsSelected = false; toggleCopyTools() } else { targetChapterIsSelected = true; toggleCopyTools(); target_parent_id = selectedTargetID; } }); $("#target-book-tree") .jstree({ core : { "initially_open" : ["book_"+getParameterByName('target_book_id')],"animation": 100 },"plugins":["themes","html_data","ui"],"themes" : { "theme" : "classic","dots" : true,"icons" : false },"ui" : { "select_limit" : 1,"selected_parent_close" : "deselect",},}); } $(document).ready(function() { loadTargetTree(); }); AND MY AJAX CALL: var sendData = 'new_name='+$('input#new_name').val()+'&target_book_id='+target_book_id + '&source_lib_id='+source_lib_id + '&target_parent_id='+target_parent_id; $.ajax({ dataType: "json",type: "POST",url: "/ajax/CopySelectedSection",data: sendData,error: function(data) { alert("Oops! An error occured. Please try again later.") },success: function(data) { if (data['status'] == "ok") { $("div#target-book-tree").html(data['book_outline']); $("#target-book-tree").jstree('destroy'); loadTargetTree(); } else { alert("Sorry,..."); } } })