Initial OpenECOMP Portal commit

[portal.git] / ecomp-portal-FE / client / bower_components / jqTree / _entries / 48_loaddatafromurl.md

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+---
+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 %}