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Overview

Updated on Mar 2, 2026

This article lists the client-side API of RadStepper and shows how to use it.

To use the API, you must first get a reference to the control's client-side object. For example:

JavaScript

var stepper = $find("<%=RadStepper1.ClientID %>");

RadStepper is a server-side wrapper over the Kendo UI Stepper Widget. Thus, it exposes the API of the underlying Kendo widget. To get a reference to the Kendo widget instance, you can do either of the following:

Use the get_kendoWidget() method of the MS AJAX wrapper:

JavaScript

  var stepperObject  = $find("<%=RadStepper1.ClientID %>"); //the standard script control object
  var kendoStepper = stepperObject.get_kendoWidget(); //the Kendo widget

Get the Kendo Widget in its usual way. Make sure to use the $telerik._kendo.jQuery reference that has the Kendo widget data:
JavaScript
```
  var kendoStepper = $telerik._kendo.jQuery("#<%=RadStepper1.ClientID %>").data("kendoStepper");
```

As of the 2026 Q1 release, Kendo jQuery widget plugins and data are registered on $telerik._kendo.jQuery — a different jQuery instance from $telerik.$ . If you use $telerik.$ with .data("kendoXxx"), it will return undefined. Always use $telerik._kendo.jQuery when accessing the underlying Kendo widget via the .data() method. The recommended approach, however, is to use the get_kendoWidget() method shown above.

In addition to using the Kendo methods directly, you can also use their wrappers that follow the MS AJAX convention through the RadStepper client object.

Table1: Client-side methods exposed by the MS AJAX RadStepper object

Name	PARAMETERS	RETURN TYPE	DESCRIPTION
next			Selects the step which is immediately after the currently selected step.
previous			Selects the step which is immediately before the currently selected step.
get_selected		object	Gets the currently selected Step
set_selected	number		Sets the currently selected Step by its index
get_steps		array	Gets array of all Steps

Overview

See Also