I have a page that contains a select list, two date pickers and a classic report. The page items are all used for filtering on the report.
When any of the items has their values changed, a dynamic action fires and refreshes the report region, without submitting the page. This currently works as required.
However, I want to validate the date pickers, ie. End Date cannot be before Start Date. This seems easy to do with the validation section when the page is being submitted, but I cant work out how to do this when the region is being refreshed dynamically.