Series.DropLines

Series.DropLines property

Returns a Line object that represents the drop lines for a series on the line chart or area chart. Applies only to line chart or area charts.

public Line DropLines { get; }

Examples

namespace AsposeCellsExamples
{
    using Aspose.Cells;
    using Aspose.Cells.Charts;
    using Aspose.Cells.Drawing;
    using System;

    public class SeriesPropertyDropLinesDemo
    {
        public static void Run()
        {
            // Create a new workbook
            Workbook workbook = new Workbook();
            Worksheet worksheet = workbook.Worksheets[0];

            // Add sample data for the chart
            worksheet.Cells["A1"].PutValue("Category");
            worksheet.Cells["A2"].PutValue("Q1");
            worksheet.Cells["A3"].PutValue("Q2");
            worksheet.Cells["A4"].PutValue("Q3");
            worksheet.Cells["A5"].PutValue("Q4");

            worksheet.Cells["B1"].PutValue("Series 1");
            worksheet.Cells["B2"].PutValue(120);
            worksheet.Cells["B3"].PutValue(150);
            worksheet.Cells["B4"].PutValue(180);
            worksheet.Cells["B5"].PutValue(210);

            worksheet.Cells["C1"].PutValue("Series 2");
            worksheet.Cells["C2"].PutValue(90);
            worksheet.Cells["C3"].PutValue(130);
            worksheet.Cells["C4"].PutValue(160);
            worksheet.Cells["C5"].PutValue(190);

            // Add a line chart
            int chartIndex = worksheet.Charts.Add(ChartType.Line, 6, 0, 20, 10);
            Chart chart = worksheet.Charts[chartIndex];

            // Set chart data range
            chart.NSeries.Add("B2:B5", true);
            chart.NSeries.Add("C2:C5", true);
            chart.NSeries.CategoryData = "A2:A5";

            // Enable drop lines for the chart
            chart.NSeries[0].HasDropLines = true;
            chart.NSeries[1].HasDropLines = true;

            // Access the drop lines for the first series
            Line dropLines = chart.NSeries[0].DropLines;

            // Display current drop line properties
            Console.WriteLine("Drop line color: " + dropLines.Color);
            Console.WriteLine("Drop line style: " + dropLines.Style);
            Console.WriteLine("Drop line weight: " + dropLines.Weight);

            // Modify drop line properties
            dropLines.Color = System.Drawing.Color.Red;
            dropLines.Style = LineType.Solid;
            dropLines.Weight = WeightType.MediumLine;
            dropLines.DashType = MsoLineDashStyle.Solid;
            dropLines.IsVisible = true;

            // Save the workbook
            workbook.Save("SeriesPropertyDropLinesDemo.xlsx");
        }
    }
}

See Also