Look at the blankLabel and blankOption attributes for the select component.
(http://tapestry.apache.org/tapestry5/tapestry-core/ref/org/apache/tapestry/corelib/components/Select.html)
There are good examples in the Tapestry 5 jumpstart.
(http://files.doublenegative.com.au/jumpstart/)
> -Or
You can do this when you create select model. For example, in my
application I have a drop down of catagories fetched by a DAO, with
first element being "-- Please Select":
@Cached
public SelectModel getCategoriesModel() {
Schemed schema = _catalog.computeOdsSchema