Category Archives: form

Tapestry & AjaxFormLoop

Tapestry mailing list has a constant flow of newbie questions related to AjaxFormLoop component. This is a very powerful component but with some limitations that must be understood before using it.

AjaxFormLoop allows, in a limited way, dynamic addition of components to a form. These components are laid out inside the AjaxFormLoop. Each time the ‘Add New’ link is clicked, addRow event is triggered. This event requires the event handler to return a new ‘value’ bean. A new row is added to the loop with the given set of components and these components if form fields are bound to the newly instantiated bean.

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