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Client-side Programming Overview
RadPushButton provides a flexible client-side API. You can easily interact with the button in the browser using the RadPushButton 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 RadPushButton client-side object
RadPushButton creates a client-side object with the ClientID of the button. You can obtain the reference using the following JavaScript code:
JavaScript
var button = $find("<%= RadPushButton1.ClientID %>");
JavaScript
var button = $telerik.findpushbutton("<%= RadPushButton1.ClientID %>");