ExpansionPanel PHP Class Overview

The Kendo UI ExpansionPanel for PHP is a server-side wrapper for the Kendo UI ExpansionPanel widget. The ExpansionPanel is a layout control that provides the user with an easy way to expand and collapse a content area within the application.

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The ExpansionPanel is part of Telerik UI for PHP, a professional grade UI library with 90+ components for building modern and feature-rich applications. To try it out sign up for a free 30-day trial.

Getting Started

Configuration

Here are the required steps to use the Kendo UI ExpansionPanel for PHP.

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 a ExpansionPanel.

    <?php
    $brazil = new \Kendo\UI\ExpansionPanel('brazil');
    $brazil->title('Brazil');
    $brazil->subTitle('South America');
    $brazil->expanded(true);
    $brazil->content("The word 'Brazil' likely comes from the Portuguese word for brazilwood, a tree that once grew plentifully along the Brazilian coast. In Portuguese, brazilwood is called pau-brasil, with the word brasil commonly given the etymology 'red like an ember', formed from brasa ('ember') and the suffix -il (from -iculum or -ilium). As brazilwood produces a deep red dye, it was highly valued by the European textile industry and was the earliest commercially exploited product from Brazil.
    ?>

Step 3 Output the ExpansionPanel by echoing the result of the render method.

    <?php
    echo $brazil->render();
    ?>

Event Handling

All client-side events are listed in the ExpansionPanel events API section.

Specify Function Names

The example below demonstrates how to subscribe to events by specifying a JavaScript function name.

    <?php
    $brazil = new \Kendo\UI\ExpansionPanel('brazil');

    // The 'expansionpanel_expand' JavaScript function will handle the 'expand' event of the expansionpanel
    $brazil->expand("onExpand")

    echo $brazil->render();
    ?>
    <script>
    function onExpand() {
            console.log("onExpand");
    };
    </script>

Define an Event Handler Function Inline

The example below demonstrates how to subscribe to events by providing inline JavaScript code.

    <?php
    $expansionpanel = new \Kendo\UI\ExpansionPanel('brazil');

    // Provide inline JavaScript code that will handle the 'expand' event of the ExpansionPanel
    $expansionpanel->expand('function() { /* Handle the expand event */ }');

    echo $expansionpanel->render();
    ?>

Reference Client-Side Instances

You can reference an existing ExpansionPanel instance via the jQuery.data(). Once a reference is established, use the ExpansionPanel API to control its behavior.

    <?php
    $expansionpanel = new \Kendo\UI\ExpansionPanel('brazil');
    echo $expansionpanel->render();
    ?>
    <script>
    $(function() {
        // The constructor parameter is used as the 'id' HTML attribute of the expansionpanel
        var expansionpanel = $("#brazil").data("kendoExpansionPanel");
    });
    </script>

See Also

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