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An event handler often needs to update multiple zones on the client side. To accomplish this, use an AjaxResponseRenderer, indicating the zones to update. You must know the client-side id for each zone to update (the best way for this is to lock down the zone's id using the id parameter of the Zone component).

AjaxResponseRenderer was introduced in Tapestry 5.3. For Tapestry 5.2 and earlier, return a MultiZoneUpdate object instead).

The renderer for each zone can be the zone 's bodyitself, a block, a component, a Renderable or a RenderCommand ... or an object, such as String, that can be coerced to either of these.

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