how to know which rows were edited in h:datatable

Hello dear,

I think you can do that by using a Map. e.g

Map<Object[], Boolean> selections = new HashMap<Object[], Boolean>();

public String deleteSelection(){

try{

for (Object[] item: List) {

Boolean selected = selections.get(item);

if (selected!=null && selected) {

selections.put(item, false);

System.out.println("The deleted is: "+ item[0].toString());

// u can call any method u want

}

}

}catch(Exception e){

e.printStackTrace();

}

and on the JSF side use:

<h:dataTable id="list" value="#{userList}" var="User" >

<h:column>

<f:facet name="header">

<h:outputText value="Select" />

</f:facet>

<h:selectBooleanCheckbox value="#{selections[User]}" />

</h:column>

<h:column>

<f:facet name="header">

<h:outputText value="Name" />

</f:facet>

<h:outputText value="#{User.name}" />

</h:column>

</h:dataTable>

<h:commandButton ction="#{Action.deleteSelection}" value="Delete />

I hope it will do the trick;">

saifulislamkhana at 2007-7-10 0:47:29 >

I thought of implementing the valueChangeListener but that results in two problems

Firstly, the valueChagneListener is invoked before the update model phase, hence I don't have the datamodel(h:dataTable) at that stage.

Secondly, even if I get the dataModel somehow, how do I know the row that resulted in the valueChangeListener event being fired.

Jatin_Kulkarnia at 2007-7-10 0:47:29 >