Problem with updating values, a4j:commandButton

[aviskrich]

Greetings!

I have a problem with receiving updated value from a backing bean using actionListener or action attribute in a4j:commandButton.

That's the point:

part of my xhtml page:

<h:form prependId="false" styleClass="style1">            
    <table cellpadding="0" cellspacing="2" border="2" bgcolor="#adff2f" align="center">
        <tr align="justify" valign="baseline">
            <td colspan="5">
                <h:inputText id="txtExpression" value="#{calcBean.expression}" ajaxRendered="true"/>
            </td>
        </tr>
        <tr align="center" valign="middle">
            <td>
                <a4j:commandButton value="1" action="#{calcBean.add1}" reRender="txtExpression"/>
            </td>
...
</h:form>

the code of the event processor is:

@ManagedBean(name = "calcBean")
@SessionScoped
public class CalcBean {

     protected String expression = "2 + 3";

     /* Getters and setters */
     ...

     /* Action processors */
     public Object add1(){
        this.setExpression(expression.concat("1"));
        return null;
     }
}

So. After pushing button '1', i'm expecting to see "2+31" in my textArea, but it still showing 2+3.

How can i fix it?

[boy18nj]

If you replace a4j:commandButton with h:commandButton, does it works?

Which richfaces version do you use?

[aviskrich]

Yep, it does. But i need to ajaxify the behaviour of the commandButton and reRender only the inputText, not the whole page. In looks awful.

My version is 4.0.0-SNAPSHOT.

[ilya_shaikovsky]

use execute=@this at button

[aviskrich]

No effect. Which effect should i expect from this attribute?

[nbelaevski]

Andrey,

Does this work when prependId="true"?

[aviskrich]

Unfortunally no.

There's a strange thing going... Method get<someBindingAttr>() is called BEFORE action method. So it returns a previous assigned value.

The second strange thing. Even the previous value is not pulled from a backing bean.

[nbelaevski]

In RichFaces 4.x reRender attribute has been renamed into render, so you should update your code.

[aviskrich]

That's it!

I've already found a solution, but did not posted here.

Thank you very much!

[luisaggo]

Please post the solution. I have a problem same and I try to solve but I dont know to do!!!

Thanks.