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Events Overview

RadToolTip and RadToolTipManager both support the same client-side events that let you customize the behavior of the control:

To use these events, simply write a JavaScript function that can be called when the event occurs. Then assign the name of the JavaScript function as the value of the the corresponding property.

<script type="text/javascript">
    function clientShow(sender, eventArgs)
        alert("OnClientShow tool tip: " + sender.get_text());
<telerik:RadToolTip RenderMode="Lightweight" ID="RadToolTip1" runat="server" Skin="Inox" TargetControlID="Button1"
    IsClientID="true" OnClientShow="clientShow" Text="text">

You can also assign event handlers in client-side code. For more information see the Setting Event Handlers via JavaScript article.

For a live example illustrating the RadToolTip client-side events, see the Client-side events live demo.


The RadToolTipManager also offers three additional events that are specific for its Load-On-Demand functionaliaty:

  • OnClientRequestStart
  • OnClientResponseEnd
  • OnClientResponseError

Read more about them in the ToolTipManager Specific Events help article.

See Also

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