Hello,
I have two tr:selectOneChoice components, where the list of choices in the
second depends on the selection made in the first. The first selection is
required. I have other required fields in the same form. So I have
something that looks like this:
<tr:messages />
<tr:panelHorizontalLayout>
<tr:inputText label="Input:"
required="true"
value="#{testBean.input}" />
<tr:selectOneChoice label="Select one:"
required="true"
requiredMessageDetail="You must select one"
unselectedLabel="Select one..."
value="#{testBean.firstSelection}"
readOnly="false"
valueChangeListener="#{testBean.selectionChange}"
autoSubmit="true"
id="firstSelection"
immediate="true">
<f:selectItems value="#{testBean.firstList}" />
</tr:selectOneChoice>
<tr:selectOneChoice label="Select:"
unselectedLabel="Select another one..."
value="#{testBean.secondSelection}"
rendered="true"
partialTriggers="firstSelection">
<f:selectItems value="#{testBean.secondList}" />
</tr:selectOneChoice>
</tr:panelHorizontalLayout>
I've included the Java code at the end of the message. It is not very
interesting and seems to work, ie, the choices in the second list change
each time the selection in the first changes.
The problem is that every time the first selection changes, a message is
displayed indicating that the inputText is required ("Input:- Value
Required"). If the first selection is changed back to the unselected label,
a message is displayed to indicate that the selection is required.
Obviously I have the first selection set to immediate because I don't want
validation to occur when this changes, I only want the second list to be
updated. If I do not use immediate="true", messages are not displayed in
the tr:messages component but messages are displayed next to the required
inputs that are missing. It works the way I want it to if I used
immediate="true" and do not have a messages component.
Questions:
- Why is validation performed on an immediate form submission? It seems to
be skipping one stage of validation (and so not displaying the message next
to the required component) but still validating and displaying a message.
- How can I get the behavior I want and still have a tr:messages component
on the page?
Regards,
Eric Fikus
Java code:
// imports not shown
public class TestBean
{
private String input;
private String firstSelection;
private String secondSelection;
private List<SelectItem> secondList;
public List<SelectItem> getFirstList()
{
return Arrays.asList(new SelectItem("a"), new SelectItem("b"));
}
public void selectionChange(ValueChangeEvent event)
{
String value = (String) event.getNewValue();
if (value.equals("a"))
{
secondList = Arrays.asList(new SelectItem("apple"));
}
else if (value.equals("b"))
{
secondList = Arrays.asList(new SelectItem("blue"));
}
}
// getters and setters for all fields not shown
}
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