Wizard Problem

[liquidshadow]

Hi,
I made a Wizard to upload a file. In the second step of wizard I print a Table which contains data read from file. In this table I need to select some rows with checkboxes.
Now if I go back to first step and I upload another file, in the second step the lines previously selected are still selected! Even if I upload a different file!

I tried to use clean() method with TableRowGroup, WizardStep and Wizard. I tried it into WizardEventListener and in preprocess() method but it doesn't work. I also tried to create a new WizardStep.

How can I reset row selection when I go back to first wizard step?


Thanks in advance

Lorenzo