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update listview with icons and thumbnails from a background worker

hi,
Here is what i want to do.
I am making a file and folder browser similar to Windows Explorer with a treeview and listview..
In that, i get icons and thumbnails of a particular file/folder from a function(getMyIcon()) which interacts with shell to get icons and updates the two imagelists( for small and large icons).this in turn is used to update a listview to show the file/folder name and the icons.
The problem is the UI becomes unresponsive when large no of icons of respective files/folders have to be retrieved present in a single folder.I am trying to use a background worker for that purpose. putting the retrieval of the icons in the background and updating the UI. but i get cross thread errors or target invocation exceptions. I have used delegates to update the listview.

Can anybody suggest an approach for the above?
Any help would be appreciated.
Oct 5 '07 #1
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