tapestry-core/src/test/app1/ChecklistDemo.tml

<t:border xmlns:t="http://tapestry.apache.org/schema/tapestry_5_1_0.xsd">
    <t:form clientValidation="none">
        <t:errors/>

        <t:checklist t:id="selected" validate="required" model="literal:Red,Green,Blue"
                     encoder="encoder" label="Color"/>

        <t:submit class="btn btn-primary" value="literal:Submit"/>
    </t:form>

    <p>Selected colors: ${sorted}</p>

</t:border>