jsTree无法从AJAX调用加载根节点 [英] jsTree unable to load root nodes from AJAX call
问题描述
我无法使用下面的jsTree加载初始根节点: 数据在服务器上,并且必须通过AJAX为选定的每个节点购买".我还想使用一个复选框并获取所选节点的所有父节点的值.
I am not able to load the initial root nodes using jsTree below: the data is on a server and has to be 'bought in' via AJAX for each node selected. I also want to use a checkbox and get value of all parent nodes of a selected node.
当前的主要问题是:我无法列出根节点....
main issue right now is: I am not able to list the root nodes....
//jsTree
$('#testTree').jstree({
'core' : {
'data' : {
'url' : function (node) {
return node.id === '#' ?
'/cgi-bin/test.pl' //url for root nodes
'/cgi-bin/test.pl?nodes-in-selected-heirarchy'; //url for children nodes
},
'data' : function (node) {
console.log('node.id='+node.id);
return { 'id' : node.id };
}
}
}
});
显示的只是一个文件夹图标.
all that this shows is a folder icon.
我从服务器获取的JSON
是:
{"5":"summer","8":"vacation","2":"2015","3":"2014","4":"2013","6":"winter","1":"2016","7":"birthday"}
它是key:value,
格式.
这是一个新的修改后的代码:即使这样也不起作用...
Here is a new modified code: even this does not work ...
$('#test').jstree({
'core': {
'data':{ //this is the data provided to the jsTree to draw the tree.
'url': function( node ){
if( node.id === '#' ){
console.log('1');
return "/cgi-bin/test.pl";
} else {
console.log('2');
return "/cgi-bin/test.pl?jsTreeParentKey=" + node.data( "key" );
}
},
'data': function(node) { //the data sent to the server
console.log('node.id='+node.id);
return {
'id': node.id,
'xyz': 'value_xyz' //extra set of param=value sent to server
};
},
'success': function (retData) {
data = [];
for( indx in retData ){
var value = retData[indx]
console.log('indx=i'+indx+', value='+value);
node = {
'id' : 'i'+indx,
'text' : value,
'icon' : '/',
//'metadata' : value,
'state' : {'opened' : false} //'state' : 'closed'
}
data.push( node );
}
return data;
}
// "check_callback" : true
}
},
"checkbox" : {
"keep_selected_style" : false
},
"plugins" : [ "checkbox","json_data" ]
});
我在日志中得到了
1 <---- from URL
node.id=# <----from param sent
indx=i1, value=2016
indx=i2, value=2015
indx=i3, value=2014
indx=i4, value=2013
indx=i5, value=summer
indx=i6, value=winter
indx=i7, value=birthday
indx=i8, value=vacation
推荐答案
您的数据格式(从服务器返回的JSON)不是必需的jsTree格式.至少在每个节点上都包含一个text
属性.
Your data format (the JSON you return from the server) is not in the required jsTree format. At least include a text
property on each of your nodes.
这是详细的文档:
https://github.com/vakata/jstree#the-required-json-format
Here are the detailed docs:
https://github.com/vakata/jstree#the-required-json-format
这篇关于jsTree无法从AJAX调用加载根节点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IT屋!