Cancelling the Display Of Webservice-bound Tooltip

[John]

Hello, I have a bit an issue with ToolTips and Webservices.

In this scenario, I have a Tooltip that needs to periodically check a Webservice for results. Sometimes there are no results, so the Webservice returns null. I would like to catch these nulls and prevent the Tooltip from displaying "null" or an empty balloon, and the place to do that would seem to be clientbeforeShow, but the Webservice does not appear to be called until after this event. By the time we reach OnClientShow, it is too late to stop the Tooltip from appearing. Is there another way to go about this?

Additionally, how does one cause the ToolTip to initiate another Webservice call from the client-side. Is this possible?

Thank-you in advance!

[John]

Any help on this would be greatly appreciated.

[Svetlina Anati]

Hello John,

The only solution we can suggest for this scenario is to use a RadXmlHttpPanel control to get the result returned from the WebService. After that, if it is different than null, to set teh content of the tooltip and to show it.

The demos of the RadXmlHttpPanel are available below:

http://demos.telerik.com/aspnet-ajax/xmlhttppanel/examples/default/defaultcs.aspx

and the documentation is here:

http://www.telerik.com/help/aspnet-ajax/radxmlhttppanel.html

Kind regards,
Svetlina
the Telerik team

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