The `<tc:selectManyListbox/>` create a list, where more than one entry could be selected. Entries are added with `<tc:selectItem/>` (static) or `<tc:selectItems value="\#{controller.list}"/>` (from controller).

Tag Library Documentation: | |

In this example, there is a list with three items. The second one is disabled with the `itemDisabled` attribute of the `` tag.

Select an entry and press the submit-button. The text in the outputfield depends on the selection.

    <tc:selectManyListbox label="List" value="\#{selectManyListboxController.celestials}">
      <tc:selectItem itemLabel="Sun" itemValue="The sun, "/>
      ...
    </tc:selectManyListbox>
    <tc:out label="Selection" value="\#{selectManyListboxController.celestial}"/>

The selected deserts from the list, are shown in the `<tc:out id="desertOutput" .../>`. The value in the outputfield will be rerendered, after the selection in the list changed. For that, `<tc:selectManyListbox label="Deserts" size="4" ...>` contain a `<f:ajax render="desertOutput"/>` tag.

The number of rows is set to four by the `size` attribute. Is no size set, the height of the list depends of the number of rows. The list shows at least two rows. Values lower than two have no effect.