Hello,
Recently started a wicket project and was making excellent progress till ran
into a problem with DropDownChoices. I am trying to get a DropDownChoice to add
a panel to a form when an option is selected. The DropDownChoice contains a
list of URI properties that each map to a different datatype. When a URI is
selected in the drop down the correct component (DateField, textField, checkbox
etc) needs to be added to the form to edit the property value. I am using
fragments to actually render the right component for the datatype (as specified
in the Bean editor example).
My DropDownChoice does the following:
protected boolean wantOnSelectionChangedNotifications() {
return true;
}
protected void onSelectionChanged(final URI newSelection) {
remove(dropdownChoice)
add(new BagValueFormPanel(getComponentFactoryForURI(newSelection))
}
The BagValueFormPanel has a supporting model that adds edit components in a
ListView along with a + symbol to add more components.
Unfortunately my list view panel does not get all the list items rendered. When
running the BagValueFormPanel unit test, I get the following debug tree:
INFO BaseWicketTester - path form:panel
wicketclient.components.form.BagValueFormPanel [[= null &&]]
INFO BaseWicketTester - path form:panel:valuesList
org.apache.wicket.markup.html.list.ListView [[= null &&]]
INFO BaseWicketTester - path form:panel:valuesList:0
org.apache.wicket.markup.html.list.ListItem [= null &&]
INFO BaseWicketTester - path form:panel:valuesList:0:valueFragment
org.apache.wicket.markup.html.panel.Fragment []
INFO BaseWicketTester - path form:panel:valuesList:0:valueFragment:value
wicketclient.panels.search.QueryElementPanel [= null &&]
INFO BaseWicketTester - path
form:panel:valuesList:0:valueFragment:value:condition
org.apache.wicket.markup.html.form.DropDownChoice [=]
INFO BaseWicketTester - path
form:panel:valuesList:0:valueFragment:value:value
org.apache.wicket.markup.html.panel.Fragment []
INFO BaseWicketTester - path
form:panel:valuesList:0:valueFragment:value:value:value
org.apache.wicket.markup.html.form.TextField []
INFO BaseWicketTester - path
form:panel:valuesList:0:valueFragment:value:booleanOp
org.apache.wicket.markup.html.form.DropDownChoice [&&]
But when running the test for the dynamic DropDownChoice panel where the
selection is made to one of the list choices, I get the following tree
(form:panel:filterParameterPanel:valuesList is the matching component):
INFO BaseWicketTester - path form org.apache.wicket.markup.html.form.Form
[]
INFO BaseWicketTester - path form:panel
wicketclient.panels.search.PropertySelectComponent []
INFO BaseWicketTester - path form:panel:propertyName
org.apache.wicket.markup.html.panel.Fragment []
INFO BaseWicketTester - path form:panel:propertyName:property
org.apache.wicket.markup.html.basic.Label [Or The Other]
INFO BaseWicketTester - path form:panel:filterParameterPanel
wicketclient.components.form.BagValueFormPanel [[= null &&]]
INFO BaseWicketTester - path form:panel:filterParameterPanel:valuesList
org.apache.wicket.markup.html.list.ListView [[= null &&]]
INFO BaseWicketTester - path form:panel:filterParameterPanel:addValue
org.apache.wicket.markup.html.form.SubmitLink []
Is this kind of dynamic addition of components possible on an
onSelectionChanged? If not I probably won't be able to add the panel in earlier
and delay the selection of the right Fragment to render the edit control right?
Cheers
Sumit
