TreeList PHP Class Overview
The Kendo UI TreeList for PHP is a server-side wrapper for the Kendo UI TreeList widget.
Getting Started
The Basics
There are three ways to bind a Kendo UI TreeList for PHP:
- Locally—Local binding binds the TreeList to a PHP array.
- Remotely, loading all items—During the remote loading of all items the TreeList makes a single AJAX request that fetches all elements, and is bound to the JSON result.
- Remotely, loading on demand—During the remote loading on demand the TreeList makes AJAX requests when the user expands an item, and is bound to the JSON result.
Configuration
Below are listed the steps for you to follow when configuring the Kendo UI TreeList for PHP for local binding.
Step 1 Make sure you followed all the steps from the introductory article on Telerik UI for PHP—include the autoloader, JavaScript, and CSS files.
Step 2 Create an array to which the TreeList will be bound.
<?php
$data = array(
array('name' => 'John Doe', 'age' => 32, 'parentId' => null),
array('name' => 'Jane Doe', 'age' => 29, 'parentId' => null)
);
?>
Step 3 Create a dataSource and set its data.
<?php
$dataSource = new \Kendo\Data\DataSource();
$dataSource->data($data);
?>
Step 4 Create a TreeList, configure its columns and set its dataSource.
<?php
$nameColumn = new \Kendo\UI\TreeListColumn();
$nameColumn->field('name');
$ageColumn = new \Kendo\UI\TreeListColumn();
$ageColumn->field('age');
$treelist = new \Kendo\UI\TreeList('treelist');
$treelist->addColumn($nameColumn, $ageColumn)
->dataSource($dataSource);
?>
Step 5 Output the TreeList by echoing the result of the render method.
<?php
echo $treelist->render();
?>
Event Handling
You can subscribe to all TreeList events.
Specify Function Names
The example below demonstrates how to subscribe for events by specifying a JavaScript function name.
<?php
$treelist = new \Kendo\UI\TreeList('treelist');
// The 'treelist_dataBound' JavaScript function will handle the 'dataBound' event of the treelist
$treelist->dataBound('treelist_dataBound');
echo $treelist->render();
?>
<script>
function treelist_dataBound() {
// Handle the dataBound event
}
</script>
Provide Inline Code
The example below demonstrates how to subscribe to events by providing inline JavaScript code.
<?php
$treelist = new \Kendo\UI\TreeList('treelist');
// Provide inline JavaScript code that will handle the 'dataBound' event of the treelist
$treelist->dataBound('function() { /* Handle the dataBound event */ }');
echo $treelist->render();
?>
Reference
Client-Side Instances
You are able to reference an existing TreeList instance via the jQuery.data(). Once a reference is established, use the TreeList API to control its behavior.
<?php
$treelist = new \Kendo\UI\TreeList('employees');
echo $treelist->render();
?>
<script>
$(function() {
// The constructor parameter is used as the 'id' HTML attribute of the treelist
var treelist = $("#employees").data("kendoTreeList")
});
</script>