Trendline.Order

Trendline.Order property

Returns or sets the trendline order (an integer greater than 1) when the trendline type is Polynomial. The order must be between 2 and 6.

public int Order { get; set; }

Examples

using System;
using Aspose.Cells;
using Aspose.Cells.Charts;

namespace AsposeCellsExamples
{
    public class TrendlinePropertyOrderDemo
    {
        public static void Run()
        {
            Workbook workbook = new Workbook();
            Worksheet worksheet = workbook.Worksheets[0];
            
            // Add sample data
            worksheet.Cells["A1"].PutValue(1);
            worksheet.Cells["A2"].PutValue(2);
            worksheet.Cells["A3"].PutValue(3);
            worksheet.Cells["B1"].PutValue(4);
            worksheet.Cells["B2"].PutValue(5);
            worksheet.Cells["B3"].PutValue(6);

            int chartIndex = worksheet.Charts.Add(ChartType.Scatter, 5, 0, 20, 8);
            Chart chart = worksheet.Charts[chartIndex];
            chart.NSeries.Add("A1:A3", true);
            chart.NSeries.CategoryData = "B1:B3";

            Series series = chart.NSeries[0];
            int trendlineIndex = series.TrendLines.Add(TrendlineType.Polynomial);
            Trendline trendline = series.TrendLines[trendlineIndex];
            trendline.Order = 3;

            workbook.Save("TrendlineOrderDemo.xlsx");

            Workbook loadedWorkbook = new Workbook("TrendlineOrderDemo.xlsx");
            Chart loadedChart = loadedWorkbook.Worksheets[0].Charts[0];
            Trendline loadedTrendline = loadedChart.NSeries[0].TrendLines[0];
            
            Console.WriteLine("Trendline Order: " + loadedTrendline.Order);
        }
    }
}

See Also