How Can I Manually Trigger an Onchange Event for a Date-Time Field?

Triggering Onchange Events Manually

When setting the value of a date-time text field through a calendar widget, the desired outcome is to reset other fields on the page upon the change in the date-time value. However, simply setting the value via JavaScript does not trigger the necessary onchange event.

To manually trigger an onchange event, a solution utilizing modern browser capabilities exists:

Firstly, create a new 'change' event, as demonstrated in the following code:

// Create a new 'change' event
var event = new Event('change');

Subsequently, dispatch the event to the target element:

// Dispatch the event
element.dispatchEvent(event);

This approach effectively checks for value differences in the text field and allows for the appropriate action upon a manual change. It provides a cleaner and more standardized method of triggering onchange events as compared to alternative approaches.

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