how to retrieve richfaces datatable column values????

[hasitharandika]

hi guys,

i'm fairly new to richfaces.
i have a richfaces datatable which contains number of columns. these colums can be edited. but once i click the relevant column i'm getting null from the Bean.

so how can i retrieve column values of a datatable from a Bean

regards,
Hasith

[nbelaevski]

Hi Hasith,

Please post page and bean code.

[hasitharandika]

hi nbelaevski,

here's the code
this is the richfaces datatable


<rich:dataTable id="dt1" value="#{tableBean.loadAllUserRoles}" var="item" >
<f:facet name="header">
<h:outputText value="#{msg.role}"/>
</f:facet>
<rich:column>
<f:facet name="header">
<h:outputText value="#{msg.editRole}" id="userRoleName"/>
</f:facet>
<a4j:commandLink value="Edit" actionListener="#{tableBean.countListener}" reRender="userRoleName, loadAllUserRoles">
</a4j:commandLink>
</rich:column>

<rich:column sortBy="#{item.userRoleName}" filterBy="#{item.userRoleName}" filterEvent="onkeyup" >
<f:facet name="header">
<h:outputText value="#{msg.roleName}"/>
</f:facet>
<h:outputText value="#{item.userRoleName}" id="name"></h:outputText>
</rich:column>

<rich:column>
<f:facet name="header">
<h:outputText value="#{msg.status}"/>
</f:facet>
<h:outputText value="#{item.status}"></h:outputText>
</rich:column>
<f:facet name="footer">
<rich:datascroller selectedStyle="font-weight:bold"/>
</f:facet>
</rich:dataTable>

and this is my Bean

public void countListener(ActionEvent event) {

System.out.println("Event:::::" event.toString());
System.out.println("\n""current Item:"+event.getComponent());

}

and i have getter and setter for userRoleName

i want to retrieve selected rows roleName from the bean

regards,
Randika

[nbelaevski]

You can use f:setPropertyActionListener to assign value to bean property and "action" method instead of "actionListener".

[hasitharandika]

hi nbelaevski,

<a4j:commandLink value="Edit"
reRender="#{item.userRoleName}">
<f:setPropertyActionListener value="#{item.userRoleName}" target="#{tableBean.countListener}"/>
</a4j:commandLink>

so what are the changes that i should do in the Bean in order to get the assign value???

[nbelaevski]

BTW, there's an "Edit table with modal panel" example in livedemo.

[hasitharandika]

yes but they have not provided the Bean class there??
if you can give me a sample code or the bean class creation it would be nice, from the morning onwards i'm trying this but still couldn't sort it out

ideas would greatly appriciate

<a4j:commandLink value="Edit"
reRender="#{item.userRoleName}">
<f:setPropertyActionListener value="#{item.userRoleName}" target="#{tableBean.countListener}"/>
</a4j:commandLink>

in my backing bean i have this listener method

public void countListener(ActionEvent event) {
System.out.println("\n"+"current Item:"+userRoleName);
setUserRoleName(getUserRoleName());

}

but when i click the link this method does not invoke???



regards,
Randika

[nbelaevski]

Randika,

You can get livedemo sources here: http://jboss.com/index.html?module=bb&op=viewtopic&t=104575

Just thought that you can pass necessary value as method argument if you are using Seam or JBoss-EL - check: http://www.ilikespam.com/blog/el-function-parameters-with-jboss-el or Seam documentation.

[nbelaevski]

"target" attribute should point to an expression to be updated, not action listener method - read TLD documentation for more.