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This action dispatches any event to any element. In a sense, this is the most powerful XForms Action since, through events, nearly anything can be done.
This element contains four special attributes. The two required attributes are name, which names the event, and target, which holds the IDREF of the element that will be the target of the event. Two other optional attributes (bubbles and cancelable) specify whether the event can bubble or be cancelled, though all the predefined events have their own specification and can't be overridden.
An advanced technique is to create custom events, which can be dispatched and observed to accomplish specific behaviors, like this:
<dispatch name="xforms-refresh" target="model3" ev:event="DOMActivate"/>
<dispatch name="show-easter-egg" target="listener9" cancelable="false"
ev:event="my-custom-evt"/>