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How to set events inside an Accordion control?

How to set events inside an Accordion control?

How to set events inside an Accordion control?


I'm using an Accordion control in which I drop two DropDownList controls inside one of the Accordion Pane. When I select an item in the first DropDownList control, it is supposed to trigger an event to re-populate the items of the second DropDownList control based on the item selected in the First DropDownList control. I set the onSelectedIndexChanged="doSomeProcess()" of the first DropDwonList control. But whenever I select an item on the first DropDownList control, I get this error message "Error: Sys.InvalidOperationException: Handler was not added through the Sys.UI.DomEvent.addHandler method."

How do I set events for DropDownList controls inside an Accordion Pane? Is there something I'm missing here?



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