ArcGISPortalViewer.Controls.GalleryPreviewControl.CalculateRowColumnCount C# (CSharp) Method

        private void CalculateRowColumnCount(Size availableSize, int count)
        {
            //Calculate how many rows/cols we need for the number of items
            if (!double.IsPositiveInfinity(availableSize.Width))
                currentColumnCount = (int)Math.Floor(availableSize.Width / ColumnWidth);
            else
                currentColumnCount = MaxColumnCount;
            currentRowCount = (int)Math.Floor(availableSize.Height / RowHeight);
            if (count > 0)
                currentColumnCount = (int)Math.Min(Math.Ceiling(count / (double)currentRowCount), MaxColumnCount);
            else
                currentColumnCount = 0;
            if (count < currentRowCount) currentRowCount = count;
        }