ChartPointCollection.RemoveAt

ChartPointCollection.RemoveAt method

Removes point at the index of the series..

public void RemoveAt(int index)
ParameterTypeDescription
indexInt32The index of the point.

Examples

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

    public class ChartPointCollectionMethodRemoveAtWithInt32Demo
    {
        public static void Run()
        {
            // Create a new workbook
            Workbook workbook = new Workbook();
            Worksheet worksheet = workbook.Worksheets[0];

            // Add sample data for chart
            worksheet.Cells["A1"].PutValue("Category");
            worksheet.Cells["A2"].PutValue("A");
            worksheet.Cells["A3"].PutValue("B");
            worksheet.Cells["A4"].PutValue("C");
            worksheet.Cells["B1"].PutValue("Value");
            worksheet.Cells["B2"].PutValue(10);
            worksheet.Cells["B3"].PutValue(20);
            worksheet.Cells["B4"].PutValue(30);

            // Add a chart
            int chartIndex = worksheet.Charts.Add(ChartType.Column, 5, 0, 15, 5);
            Chart chart = worksheet.Charts[chartIndex];
            
            // Set chart data range
            chart.NSeries.Add("B2:B4", true);
            chart.NSeries.CategoryData = "A2:A4";

            // Get the first series' points collection
            ChartPointCollection points = chart.NSeries[0].Points;

            try
            {
                // Display initial count
                Console.WriteLine($"Initial points count: {points.Count}");

                // Remove the point at index 1 (second point)
                points.RemoveAt(1);

                // Display result
                Console.WriteLine($"Points count after RemoveAt: {points.Count}");
                Console.WriteLine("Point at index 1 removed successfully.");

                // Save the workbook
                workbook.Save("ChartPointCollectionRemoveAtDemo.xlsx");
            }
            catch (Exception ex)
            {
                Console.WriteLine($"Error executing RemoveAt method: {ex.Message}");
            }
        }
    }
}

See Also