I would like to be able to dynamically change the message shown in the Tooltip from a ValidationTextBox without having to close and reopen it. Currently, I have the ValidationTextBox set up so that with each onkeyup event that fires, the error Tooltip closes and then reopens with a new message - I would like to avoid having to close and reopen that widget and instead just change the message while the widget inherently stays open.

I can't seem to find a variable in the ValidationTextBox that stores a reference to its Tooltip widget, however. Please advise how I can refer to it so I can modify its contents. Thank you!