InsertInternal and virtual item

[GoogleCodeExporter]

What steps will reproduce the problem?
1.Insert list of virtual items
2.
3.

What is the expected output? What do you see instead?
Just insert the first item and not insert others

What version of the product are you using? On what operating system?
6.1

Please provide any additional information below.
// Check if the file already exists
if (mImageListView != null && !mImageListView.AllowDuplicateFileNames)
{
    if (mItems.Exists(a => string.Compare(a.FileName, item.FileName,
StringComparison.OrdinalIgnoreCase) == 0))
        return;
}

Change check exist like AddInternal

Original issue reported on code.google.com by langxangvn on 16 Mar 2010 at 8:54