Bruno's idea of using a listener worked great, thanks Bruno!
Here's the relevant code in case anyone else wants to do something similar:
VIEW:
<x:dataTable id="params_dt" value="#{scriptHandler.parameterModel}"
var="params" rowIndexVar="indexParams">
<h:column id="params_col">
<h:inputText id="params_it" value="#{params.value}"
valueChangeListener="#{scriptHandler.updateParamValue}">
<f:param name="index" value="#{indexParams}"/>
</h:inputText>
</h:column>
</x:dataTable>
CONTROLLER(scripthandler.updateParamValue()):
public void updateParamValue(ValueChangeEvent vce){
String newValue = (String) vce.getNewValue();
// get new value from inputText box
UIParameter inputBox = (UIParameter)
vce.getComponent().getChildren().get(0);
Integer index = (Integer) inputBox.getValue();
//update the model with the new value.
changeParameterModelValue(index, newValue);
}
public void changeParameterModelValue(Integer newIndex, String newValue){
ArrayList parameterArray;
int index = newIndex.intValue();
// access Parameter class at Index & update its value.
parameterArray
=(ArrayList)getParameterModel().getWrappedData();
((Parameter)parameterArray.get(index)).setValue(newValue);
//wrap the arrayList back into the ListDataModel
getParameterModel().setWrappedData(parameterArray);
}
MODEL:
public class Parameter {
private Integer id;
private Integer variableId;
private Integer jobId;
private String value;
/** getters and setters ....
}
-----Original Message-----
From: Jason Nichols [mailto:[EMAIL PROTECTED]
Sent: Tuesday, July 05, 2005 10:49 PM
To: 'MyFaces Discussion'
Subject: RE: is it possible to edit dynamic Tabular data?
All:
Thank you for your replies. Of the three ideas I've tried the two most
straightforward and unfortunately I don't think they worked. I'm going to
try Bruno's idea of using a valueChangeListener next.
If anyone's interested the pages are at http://npgrid.fsu.edu
detail:
1) <x:dataTable preserveDataModel = "true" (also tried ="false")
This didn't work, and if I understand Slawek's description of
preserveDataModel it seems like it does the exact opposite: it prevents the
data model from changing.
2) ExternalContext
I haven't tried ExternalContext exactly b/c I in my original debugging I
examined facesContext() durnig the action method called by the form
commandButton, which should give me the request values since I'm logging in
phase 5 and the request values should have updated in phase 2. Please
correct me if I'm wrong on this.
Combinations of facesContext.getViewRoot().getChildren() produced this log:
jobVariables sent to user: [a, b, c] /** original strings in model **/
[EMAIL PROTECTED], /**<x:dataTable ...**/
[EMAIL PROTECTED] /** <h:column ...
**/
[EMAIL PROTECTED]/** <h:inputText **/
jobVariables received back: [a, b, c] /** should be new values **/
Thanks again and I'll let you know how Bruno's idea works. I've found
several posts in various forums asking how to do this with no answers, so
maybe I could write a custom inputText component.
Regards,
Jason
