PrimeFaces Command Button actionListener does not fire

Question

I am using prime face for a web application, I'm having this problem which is I have a prime face Command Button with an action listener, when I click that button the actionListener doesn't get fired.

<p:dataTable var="car" value="#{cart.cartItems}" rendered="#{not empty cart.cartItems}">
<p:columnGroup type="footer">
            <p:row>
                    <p:column colspan="3" footerText="Wallet Balance (#{cart.displayWalletAmount}) " style="text-align:right" />
                    <p:column>
                        <p:panel id="walPayPanel">
                            <p:inputText value="#{cart.payWalletAmount}" maxlength="7"  size="5" id="walAmount" />
                            <p:spacer width="10" />
                            <p:commandButton actionListener="#{cart.updateTotalAmount}" update="totPay,totPaybel" id="iconOnly" title="update" icon="ui-icon-refresh" />
                        </p:panel>

                    </p:column>
                </p:row>

                <p:row>  
                    <p:column colspan="3" footerText="Total Payble: "  style="text-align:right"  />  
                    <p:column><p:panel id="totPay"><h:outputText  id="totPaybel" value="#{cart.totalPayble}"/></p:panel> </p:column>                  
                </p:row>

            </p:columnGroup>                

        </p:dataTable>

And this the relevant code in the bean,

public void updateTotalAmount() {
    log.info("Entering updateTotalAmount()");
            log.info("Pay wallet Amount : "+payWalletAmount);
        // Double total = getCartTotal();
        if (payWalletAmount < 0.0) {
            FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_ERROR,
                    "Wallet Amount cannot be a minus value", null);
            FacesContext.getCurrentInstance().addMessage(null, message);

        } else if (payWalletAmount > (walletAmount)) {
            FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_ERROR,
                    "Wallet amount cannot be exceeded the available balance", null);
            FacesContext.getCurrentInstance().addMessage(null, message);

        }       

}

Interesting thing is if I placed above command button out side of the data table, action listen is getting fired. Even if I add Actionevent param in the bean method, it doesnt work. Can someone tell me how can I solve this problem? Can this be done without moving the command button outside from data table or columnGroup?

bjedrzejewski bjedrzejewski · Accepted Answer · 2012-12-06T10:05:44

There are two possible things that could help you. One is adding '()' to your actionListener. Some people previously reported that this can fix the problem:

<p:commandButton actionListener="#{cart.updateTotalAmount()}" update="totPay,totPaybel" id="iconOnly" title="update" icon="ui-icon-refresh" />

The other suspicious thing is your update statement. Try removing it and see if the button works. If it does, that means that you probably have to change it to: update=":totPay,:totPaybel"

Let me know if it helped, if not I will try to come up with other possible solutions.

Edit 1:

I have noticed similar problem recently that I managed to solve by changing the method signature to:

public void updateTotalAmount(AjaxBehaviorEvent event)

and keeping the listener:

 <p:commandButton actionListener="#{cart.updateTotalAmount}" update="totPay,totPaybel" id="iconOnly" title="update" icon="ui-icon-refresh" />

Also make sure that your bean is still alive (ViewScoped for example).

Did you manage to fix your problem differently?

PrimeFaces Command Button actionListener does not fire

2 Answers