SelectBooleanCheckbox keeping its state during a session.

Hello,
I have this checkbox and I want to save its state (selected or unselected).
I want to select the checkbox, go to another page and come back, and still the checkbox has to be selected.
What I did so far was:
Set the "binding" property on a selectBooleanCheckbox attribute in the backing bean.
Set the "valueChangeListener" to a method in the backing bean.
Create a managed session bean with a checkboxstate boolean variable and getters and setters.
Set the "value" property on the variable in the session bean through an EL expression (created with the wizard when you press the "..." button).
Besides that I'm not sure I'm doing the right things I get an error when I run the page.
javax.faces.el.PropertyNotFoundException: Error testing property 'checkBoxState' in bean of type null.
Anyone who can point me in the right direction?
Lennert

Hi,
check the EL you use. It seems to point either to a non existing managed bean or a non existing method
Frank

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