Window Control in a User Control works but two user controls Fail

Question

I have two user controls. Each have a Window Control. When I add one of them to my aspx page it works great. But when I add the second user control to the page and try to open one of htem I get the following errer:

Microsoft JScript runtime error: Sys.InvalidOperationException: Handler was not added through the Sys.UI.DomEvent.addHandler method.

What does this error mean and how do I fix it?

Thanks.

Ron

Meena · Answer

Hi Ronald,

Thanks for contacting Syncfusion forums.



We have updated the response for this query in Direct Trac
incident #102652. Kindly have follow up with the same for further updates.Please let us know if you have any other concerns.

Regards,

Meena