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trigger OnChangeOptional scope blockOptional variables blockProc code to implement a server-side triggerend
The OnChange trigger may be fired more than once for the Datepicker widget, or any native HTML5 controls, such as for Time, Datetime-Local, Week, Month, which are mapped to the Uniface physical widget
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The user interface used by the browser to display the date picker determines when the OnChange trigger is fired. For example, in Chrome and Firefox, the OnChange trigger is fired every time a day, month, or year is changed, whereas in Edge, it is fired only when the check box is clicked.
Tip: If you want to get the Datepicker value that was changed by the user, use the OnBlur trigger rather than the OnChange trigger.