I have a third-party CustomControl which requires some info for databinding or anything else what it happen in a postback event handler. Trying to send this info via, say, dropDownList i face that this dropdownlist postback event handler isn't firing before CustomControlEventHandler, as it happens in ASP.Net. What is usual workaround?
Or I should never rely on server side transfer and try to transfer this info on client-side etc.?