Setting the default drop-down list value

[Eugene Abarquez]

Hi,

I have a <h:selectOneMenu> that is being populated in the backend by a managed bean. The data are coming from the database, which and I am putting inside a Collection object, which is then bounded to the <h:selectOneMenu> component, like so:

<h:selectOneMenu id="partner_txt" value="#{edit.partner}">
<f:selectItems value="#{partner.partners}" />
</h:selectOneMenu>

My problem is, I have a CLEAR button, that when clicked will set the value of the drop down list to a default value, say SELECT PARTNERS. So for instance, the values in the drop down list are:

SELECT PARTNER
Partner 1
Partner 2

When the current value of the drop-down is "Partner 2", and the user clicks the CLEAR button, the value will change back to "SELECT PARTNER". I am having a problem on how to this exactly in JSF. Any ideas or suggestions on how to go about this will be greatly appreciated.

Thanks in advance.

[Richard Green]

<h:selectOneMenu id="partner_txt" value="#{edit.partner}">
<f:selectItems value="#{partner.partners}" />
</h:selectOneMenu>

all you need to do is set the partner property in "edit" bean to "SELECT PARTNER", when the clear button is pressed.

[Eugene Abarquez]

Hi Lynette,

It worked! Thanks a lot.

I stumbled on a different solution, though it's a lot more complicated and a bit of an overkill.

I tried getting the ValueBinding of the HtmlSelectOneMenu component and setting it to null. For instance:

ValueBinding lataVb = getApplication().createValueBinding("#{search.lata}");
lataVb.setValue(getFacesContext(),null);
lataDropDown.setValueBinding("value", lataVb);

It seems to accomplish the same result, but yours is way simpler.