餅形圖

//create a new ExcelPackage
using (ExcelPackage excelPackage = new ExcelPackage())
{
    //create a WorkSheet
    ExcelWorksheet worksheet = excelPackage.Workbook.Worksheets.Add("Sheet 1");

    //fill cell data with a loop, note that row and column indexes start at 1
    Random rnd = new Random();
    for (int i = 1; i <= 10; i++)
    {
        worksheet.Cells[1, i].Value = "Value " + i;
        worksheet.Cells[2, i].Value = rnd.Next(5, 15);
    }

    //create a new piechart of type Pie3D
    ExcelPieChart pieChart = worksheet.Drawings.AddChart("pieChart", eChartType.Pie3D) as ExcelPieChart;

    //set the title
    pieChart.Title.Text = "PieChart Example";

    //select the ranges for the pie. First the values, then the header range
    pieChart.Series.Add(ExcelRange.GetAddress(2, 1, 2, 10), ExcelRange.GetAddress(1, 1, 1, 10));

    //position of the legend
    pieChart.Legend.Position = eLegendPosition.Bottom;

    //show the percentages in the pie
    pieChart.DataLabel.ShowPercent = true;

    //size of the chart
    pieChart.SetSize(500, 400);

    //add the chart at cell C5
    pieChart.SetPosition(4, 0, 2, 0);
}