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Problem regarding the ValueChangeEvent and the commandButton

Greenhorn

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posted 15 years ago

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Hey Can anyone let me know what I am doing wrong

I have a form which has the h:selectOneMenu and a panelGrid which contains inputText and submit button

Upon selecting a value in the selectOneMenu, the panelgrid has to be rendered, initially it will be rendered as false, So it does not show up.
I wrote a valueChangedListner and it worked fine which sets the rendered flag as true for the panelGrid
But now after rendering the panelGrid, when I click the command button, it does not go the action mehod of the commandButton

Please refer to the code below. Please let me know why it is not going to the action method after it gets rendered.

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
	pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>

<%@ taglib uri="http://richfaces.org/a4j" prefix="a4j"%>
<%@ taglib uri="http://richfaces.org/rich" prefix="rich"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>GSA Vehicle Quality Deficiency Report</title>
</head>
<body>
<f:view>
<h:form id="form1">

<h:selectOneMenu value="abc" valueChangeListener="#{qDRListPopulator.testListner}" onchange="this.form.submit()">
	<f:selectItem itemValue="ABC"/>
	<f:selectItem itemValue="dfdjfhdf"/>
	<f:selectItem itemValue="sdjhsdusd"/>
</h:selectOneMenu>

<rich:panel id="formpanel" rendered = "#{qDRListPopulator.testFlag}">
<h:panelGrid columns="1" >
<h:panelGroup>
<h:inputText />
</h:panelGroup>
<h:panelGroup>
<h:commandButton action="#{qDRListPopulator.testAction}" value="Submit"  />
</h:panelGroup>
</h:panelGrid>

</rich:panel>
</h:form>
</f:view>
</body>
</html>

Please let me know why did does not work.

Akaine Harga

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Posts: 99

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posted 15 years ago

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I see you use richfaces, this makes thing easier...

instead of h:commandButton try using:And of course you would need to set the flag to true in testAction method to make rerendering take effect...

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Srini Mutpur

Greenhorn

Posts: 24

posted 15 years ago

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Have rerendered the submit Button panel ? I think rerendering of the submit button panel is not done.

Try to rerender the submit button panel on select box value change using <a4j:support reRender="panelId"/>.

Srini

SCJP 1.5

Akaine Harga

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Posts: 99

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posted 15 years ago

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Btw, just noticed... =) Get the button out of the formpanel.

Seriously Rick? Seriously? You might as well just read this tiny ad:

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