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Contents
---
title: loadDataFromUrl
name: functions-loaddatafromurl
---
**function loadDataFromUrl(url);**
**function loadDataFromUrl(url, parent_node);**
**function loadDataFromUrl(parent_node);**
Load data in the tree from an url using ajax. You can **replace the whole tree** or you can **load a subtree**.
{% highlight js %}
$('#tree1').tree('loadDataFromUrl', '/category/tree/');
{% endhighlight %}
Load a subtree:
{% highlight js %}
var node = $('#tree1').tree('getNodeById', 123);
$('#tree1').tree('loadDataFromUrl', '/category/tree/123', node);
{% endhighlight %}
You can also omit the url. In this case jqTree will generate a url for you. This is very useful if you use the load-on-demand feature:
{% highlight js %}
var $tree = $('#tree1');
$tree.tree({
dataUrl: '/my_data/'
});
var node = $tree.tree('getNodeById', 456);
// jqTree will load data from /my_data/?node=456
$tree.tree('loadDataFromUrl', node);
{% endhighlight %}
You can also add an **on_finished** callback parameter that will be called when the data is loaded:
**function loadDataFromUrl(url, parent_node, on_finished);**
**function loadDataFromUrl(parent_node, on_finished);**
{% highlight js %}
$('#tree1').tree(
'loadDataFromUrl',
'/category/tree/123',
null,
function() {
alert('data is loaded');
}
);
{% endhighlight %}
Version data entries
7 entries across 7 versions & 1 rubygems