using RhSolutions.AddIn; namespace RhSolutions.Services; public static class WorksheetExtensions { public static bool IsRehauSource(this Worksheet worksheet) { Range amountCell; Range skuCell; Range groupCell; Range nameCell; var pricelistParameters = RhSolutionsAddIn.Configuration.GetPriceListParameters(); Range[] cells = new[] { amountCell = worksheet.Cells.Find(pricelistParameters["Amount"]), skuCell = worksheet.Cells.Find(pricelistParameters["Sku"]), groupCell = worksheet.Cells.Find(pricelistParameters["Group"]), nameCell = worksheet.Cells.Find(pricelistParameters["Name"]) }; return cells.All(x => x != null); } public static void AddValue(this Range range, double value) { if (range.Value2 == null) { range.Value2 = value; } else { range.Value2 += value; } } }