Check box is not re-rendered after bean execution

Question

I have a button which I want to use for selecting all checkboxes in my datatable.

Jsf:

<webuijsf:button actionExpression="#{user$recentreports.selectAllButton_action}" text="#{msg.report_select_all}"/>

<webuijsf:checkbox binding="#{user$recentreports.selectCB}" valueChangeListenerExpression="#{user$recentreports.selectSingleCBEvent}" id="selectCB" toolTip="#{msg.report_select}"/>

java:

public void selectAllButton_action(){
System.out.println("select all button is clicked");// OK
System.out.println("selectCB.getValue()" + selectCB.getValue()); //outputs: selectCB.getValue()null
selectCB.setSelected(Boolean.TRUE); 
System.out.println("selectCB.getValue()" + selectCB.getValue()); //outputs: selectCB.getValue()true|
}

selectSingleCBEvent is collecting the row numbers of this checkbox to delete them afterwards. I want to select all checkboxes and delete the corresponding reports. When I click on the button, selectedCB's selected attribute turns to true, but in my form I can not see the change. I tried adding

FacesContext.getCurrentInstance( ).renderResponse( );

but still not working. Does anyone have any opinion about this case? Thanks in advance.