private static void ProcessDispose(
DataGridCollectionViewBase collectionView,
object oldCurrentItem,
int oldCurrentPosition,
bool oldIsCurrentBeforeFirst,
bool oldIsCurrentAfterLast )
{
if( Interlocked.Decrement( ref collectionView.m_deferCurrencyEventCount ) > 0 )
return;
bool itemChanged = false;
if( !object.Equals( oldCurrentItem, collectionView.CurrentItem ) )
{
itemChanged = true;
collectionView.OnPropertyChanged( new PropertyChangedEventArgs( "CurrentItem" ) );
}
if( oldCurrentPosition != collectionView.CurrentPosition )
{
itemChanged = true;
collectionView.OnPropertyChanged( new PropertyChangedEventArgs( "CurrentPosition" ) );
}
if( oldIsCurrentBeforeFirst != collectionView.IsCurrentBeforeFirst )
{
itemChanged = true;
collectionView.OnPropertyChanged( new PropertyChangedEventArgs( "IsCurrentBeforeFirst" ) );
}
if( oldIsCurrentAfterLast != collectionView.IsCurrentAfterLast )
{
itemChanged = true;
collectionView.OnPropertyChanged( new PropertyChangedEventArgs( "IsCurrentAfterLast" ) );
}
if( itemChanged )
{
collectionView.OnCurrentChanged();
}
}
