Not sure now - are you still doing the ListBox.AddListItem? Makes sense that you'd see each item twice, except the new one that wasn't there the first time. Maybe you should do ListBox.Clear before repopulating it
>I have a problem with your last step:
>'After closing the new form, you must call method listbox.Requery()'
>I call in the mainform\activate, but /i see every item twice in the list box (only the new item I see one time).
>there is a command like 'if not in list..' or any other solution?
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