I have a ComboBox that utilizes LoadOnDemand. Everything works fine if the user types in their input, waits for the combo box to finish loading, then submits the page. But if the user changes their input before the comboBox has finished loading and then tries to submit the page, the following error appears:
RadComboBox: load on demand callback error. Press Enter for more information.
Then when you click OK, it redirects you to a page that says that you may need to use an ExternalCallBackPage. I have tried it with the ExternalCallBackPage and the same thing happens. Is there any way around this issue?