ajax - Can't "render/not render" a4joutputpanel rendered="" "true/false" parameter by managed bean at JBoss Seam and Richfaces -


I am new on seam and richface by giving management bean to me / A shows a jutepanel / shows "right / wrong "By parameter But it is taking exception:

com.sun.facelets.tag Tag attitivx option: /testscreen.xhtml action = "# {testBean.renderActive (true)}" Not valid method intent: # {testBean.renderActive (true) }

Does anyone help me 

  & lt; A4j: commandButton action = "# {testBean.renderActive (true)}" reRender = "MyPanel" value = "start" /> & Lt; A4j: OutputPanel ID = "MyPlanel" & gt; & Lt; S: div rendered = "# {testBean.renderProperty}" & gt; ........ & lt; / S: div & gt; & Lt; / A4j: outputPanel & gt;   
 Managed Been  
  Public Zero Render Active (Boolean rendeBoolean) {this.renderProperty = rendeBoolean; } Private Boolean render property; Public Boolean getRenderProperty () {Return Assign Property; } Public Zero Retributor Property (Boolean Render Property) {this.renderProperty = renderProperty; }    
 
 
  # {testBean.render active (true)}  Actually there is no valid method expression in plain JSF EL because the parameters in the method expressions can not be.  
 Although it is valid with the EL extension provided by jboss-el.jar, though.  
 Check that this Jar application exists in the Classpath, which is in ER or in the web-INF / Lib if you do not package the application in the form of war. (See §  30.3.1 packaging  in the reference document).

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