问题描述
我希望用新的json数据替换jstree树的全部内容.
I wish to replace the entire contents of a jstree tree with new json data.
我正在使用2011年7月25日从github下载的jsTree 1.0
I'm using jsTree 1.0 downloaded July 25, 2011 from github
说我有这个功能...
Say I have this function...
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
<div id="demo1"></div>
我要做的是用从服务器加载的新数据完全替换树.但是,出于这个问题的目的,让我们假装我只是想这样做...
What I'm trying to do is to completely replace the tree with new data that I load from my server. For purposes of this question, however, let's pretend I just want to do this...
$(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","data":{"jstree":{}},"children":false,"li_attr":{"id":"2","class":"jstree-last","href":"#"},"a_attr":{"href":"#"}}],"li_attr":{"id":"0","class":"jstree-last","href":"#"},"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","data":{"jstree":{"opened":true}},"children":[{"title":"Item A","data":{"jstree":{}},"children":false,"li_attr":{"id":"1","class":"jstree-leaf","href":"#"},"a_attr":{"href":"#"}},{"title":"Item 2","data":{"jstree":{}},"children":false,"li_attr":{"id":"2","class":"jstree-last","href":"#"},"a_attr":{"href":"#"}}],"li_attr":{"id":"0","class":"jstree-last","href":"#"},"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
});
我正在基于此链接进行此操作,Ivan似乎在倡导此操作 http://groups.google.com/group/jstree/browse_thread/thread/b40a1f0ab0f9a66b? fwc = 2
I'm doing this based on this link, where Ivan seems to advocate thishttp://groups.google.com/group/jstree/browse_thread/thread/b40a1f0ab0f9a66b?fwc=2
但是,发生的是,在对init的第二次调用中,我最终在萤火虫中得到了此错误
However, what's happening is that, on the 2nd call to init, I end up geting this error in firebug
我试图打电话给毁灭
$("#demo1").jstree("destroy");
但这并不能解决我的问题.
but that didn't fix my problem.
如何用新的json数据替换整个树?
How can I replace the entire tree with new json data?
推荐答案
这是我解决此问题的方法:-将树的所有绑定和初始化包装在一个函数中-从我的document.ready函数中调用此函数(该函数处理树的初始设置)-在我的ajax调用的成功回调中,我销毁了树,然后再次调用该函数
Here's how I solved this problem:- wrap all the bindings and initialization of the tree in a function- call this function from my document.ready function (this handles initial setup of the tree)- in the success callback of my ajax call, I destroy the tree and then call the function again
代码如下:
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, ...");
}
}
})
这篇关于用新的json数据重新创建整个jstree实例的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!