Hi, thx for your answer. I join us the source form source code and the validator source code.
If you need other sources to better undertand say me.
Other little question, when i use a listbox inside the smartwizard (multi step form used in the cshtml) some classes are joined to listbox e-content to div.e-listbox-container and selectItem to li.e-select and the reverse color of selected item don't take the list box length but when i hit ctrl-shift-i the listbox work perfectly without the other classes joined. The same listbox outside this plugin work perfectly .