RadioGroup JSP Tag Overview

The RadioGroup JSP tag is a server-side wrapper for the Kendo UI RadioGroup widget.

The RadioGroup allows to change selection on radio buttons, set name on the radio buttons, set the position of the labels, attributes and custom css classes.

Getting Started

Make sure you are familiar with some of the fundamental Kendo UI widget concepts and that the Kendo UI Java wrappers are set up correctly.

Initialization

The example below demonstrates how to initialize the RadioGroup by using the default radiogroup tag.

<kendo:radioGroup name="radiogroup" >
        <kendo:radioGroup-items>
            <kendo:radioGroup-item value="one" label="Female" />
            <kendo:radioGroup-item value="two" label="Male" />
        </kendo:radioGroup-items>
</kendo:radioGroup>

Features

Enable and Disable RadioGroup

You can configure the RadioGroup to be initially disabled by using its enable property. The RadioGroup can also be disabled or enabled at any time with JavaScript by using the enable() method with a Boolean argument. For more information on the enable method of the RadioGroup, refer to the RadioGroup API.

The following example demonstrates how to enable and disable the RadioGroup.

<kendo:radioGroup name="radiogroup" enabled="true">
    <kendo:radioGroup-items>
        <kendo:radioGroup-item enabled="false" label="<strong>Female</strong>" />
        <kendo:radioGroup-item value="two" label="Male" />
        <kendo:radioGroup-item value="three" label="N/A" />
    </kendo:radioGroup-items>
</kendo:radioGroup>

Labels

The example below demonstrates how to configure label and labelPosition to the RadioGroup.

<kendo:radioGroup name="radiogroup" labelPosition="before" >
    <kendo:radioGroup-items>
        <kendo:radioGroup-item value="one" label="Female" />
        <kendo:radioGroup-item value="two" label="Male" />
    </kendo:radioGroup-items>
</kendo:radioGroup>

Layout

The RadioGroup widget supports two types of layout - "horizontal" and "vertical". By default the radio buttons are rendered vertically.

The following example shows how to set the RadioGroup layout:

<kendo:radioGroup name="radiogroup" layout="horizontal" >
    <kendo:radioGroup-items>
        <kendo:radioGroup-item value="one" label="Female" />
        <kendo:radioGroup-item value="two" label="Male" />
    </kendo:radioGroup-items>
</kendo:radioGroup>

Event Handling

Subscribe to Events

You can subscribe to all events exposed by Kendo UI RadioGroup by the handler name.

<kendo:radioGroup name="radiogroup" change="onChange" focus="onFocus" select="onSelect" >
    <kendo:radioGroup-items>
        <kendo:radioGroup-item value="one" encoded="false" label="<strong>Phone (SMS)</strong>" />
        <kendo:radioGroup-item value="two" label="E-mail" />
        <kendo:radioGroup-item enabled="false" value="three" label="None" />
    </kendo:radioGroup-items>
</kendo:radioGroup>

<script>
    function onChange() {
        //Handle the change event
    }

    function onFocus() {
         //Handle the focus event
    }

    function onSelect() {
         //Handle the select event
    }
</script>

Reference

Existing Instances

To reference to an existing RadioGroup instance, use the jQuery.data() method. Once a reference is established, use the API to control its behavior.

The following example demonstrates how to access an existing RadioGroup instance.

//Put this after your Kendo RadioGroup tag declaration
<script>
    $(function() {
        // Notice that the Name() of the RadioGroup is used to get its client-side instance
        var radiogroup = $("#radiogroup").data("kendoRadioGroup");
    });
</script>

See Also

• Overview of the Kendo UI RadioGroup Widget
• Telerik UI for JSP API Reference Folder