public void Set(int index, string newFilePath)
{
var args = new ItemChangedEventArgs(index, FileNames[index], newFilePath);
FileNames[index] = newFilePath;
ItemChanged(null, args);
}
private void HandleItemChanged(object sender, ItemChangedEventArgs e)
{
var changedImageIndex = Images.IndexOf(new ImageInfo(e.PreviousImagePath));
Images[changedImageIndex].ImgPath = e.CurrentImagePath;
}