Hi,   I tried this: <xcdg:DataGridCollectionViewSource x:Key=''cvsCompanies''AutoFilterMode=''And''DefaultCalculateDistinctValues=''False''><xcdg:DataGridCollectionViewSource.ItemProperties><xcdg:DataGridItemProperty Name=''CompanyLogo'' CalculateDistinctValues=''True''/><xcdg:DataGridItemProperty ...