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Client-side Programming Overview
RadRadioButtonList provides a flexible client-side API. You can easily interact with the checkbox in the browser using the RadRadioButtonList client-side object. In addition to a variety of client-side events, the client-side object model lets you achieve complicated tasks while avoiding unnecessary post-backs.
Getting the RadRadioButtonList client-side object
RadRadioButtonList creates a client-side object with the ClientID of the button. You can obtain the reference using the following JavaScript code:
JavaScript
var radioButtonList = $find("<%= RadRadioButtonList1.ClientID %>");
or
JavaScript
var radioButtonList = $telerik.findRadioButtonList("<%= RadRadioButtonList1.ClientID %>");
Setting selected item client-side
See Example 6 in the Select Item article.
Getting selected item client-side
See Example 7 in the Select Item article.