導出Excel之Epplus使用教程3（圖表設置）

 導出Excel之Epplus使用教程1（基本介紹）

 導出Excel之Epplus使用教程2（樣式設置） 

 導出Excel之Epplus使用教程3（圖表設置）  

 導出Excel之Epplus使用教程4（其他設置）

   

Epplus的圖表實現是很簡單的，它支持的圖表類型也很多，基本上能滿足我們的需求。創建圖表分為三步（以柱狀圖舉例）：

1、創建圖表

ExcelChart chart = worksheet.Drawings.AddChart("chart", eChartType.ColumnClustered);//eChartType中可以選擇圖表類型

2、選擇數據

    這一步是很關鍵的一步，chart.Series.Add()方法所需參數為：chart.Series.Add(Y軸數據區,X軸數據區) 

ExcelChartSerie serie = chart.Series.Add(worksheet.Cells[2, 3, 5, 3], worksheet.Cells[2, 1, 5, 1]);//設置圖表的x軸和y軸
serie.HeaderAddress = worksheet.Cells[1, 3];//設置圖表的圖例

3、設置圖表樣式   

chart.SetPosition(150, 10);//設置位置
chart.SetSize(500, 300);//設置大小
chart.Title.Text = "銷量走勢";//設置圖表的標題
chart.Title.Font.Color = Color.FromArgb(89, 89, 89);//設置標題的顏色
chart.Title.Font.Size = 15;//標題的大小
chart.Title.Font.Bold = true;//標題的粗體
chart.Style = eChartStyle.Style15;//設置圖表的樣式
chart.Legend.Border.LineStyle = eLineStyle.Solid;
chart.Legend.Border.Fill.Color = Color.FromArgb(217, 217, 217);//設置圖例的樣式

 基本上生成圖表就這么些東西了，不過不同的圖表屬性可能略有差異，得根據具體圖表具體分析。

 下面是例子的全部代碼：

 FileInfo newFile = new FileInfo(@"d:\test.xlsx");
            if (newFile.Exists)
            {
                newFile.Delete();
                newFile = new FileInfo(@"d:\test.xlsx");
            }
            using (ExcelPackage package = new ExcelPackage(newFile))
            {
                ExcelWorksheet worksheet = package.Workbook.Worksheets.Add("test");

                worksheet.Cells.Style.WrapText = true;
                worksheet.View.ShowGridLines = false;//去掉sheet的網格線

                worksheet.Cells[1, 1].Value = "名稱";
                worksheet.Cells[1, 2].Value = "價格";
                worksheet.Cells[1, 3].Value = "銷量";

                worksheet.Cells[2, 1].Value = "大米";
                worksheet.Cells[2, 2].Value = 56;
                worksheet.Cells[2, 3].Value = 100;

                worksheet.Cells[3, 1].Value = "玉米";
                worksheet.Cells[3, 2].Value = 45;
                worksheet.Cells[3, 3].Value = 150;

                worksheet.Cells[4, 1].Value = "小米";
                worksheet.Cells[4, 2].Value = 38;
                worksheet.Cells[4, 3].Value = 130;

                worksheet.Cells[5, 1].Value = "糯米";
                worksheet.Cells[5, 2].Value = 22;
                worksheet.Cells[5, 3].Value = 200;

                using (ExcelRange range = worksheet.Cells[1, 1, 5, 3])
                {
                    range.Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;
                    range.Style.VerticalAlignment = ExcelVerticalAlignment.Center;
                }

                using (ExcelRange range = worksheet.Cells[1, 1, 1, 3])
                {
                    range.Style.Font.Bold = true;
                    range.Style.Font.Color.SetColor(Color.White);
                    range.Style.Font.Name = "微軟雅黑";
                    range.Style.Font.Size = 12;
                    range.Style.Fill.PatternType = ExcelFillStyle.Solid;
                    range.Style.Fill.BackgroundColor.SetColor(Color.FromArgb(128, 128, 128));
                }

                worksheet.Cells[1, 1].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(191, 191, 191));
                worksheet.Cells[1, 2].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(191, 191, 191));
                worksheet.Cells[1, 3].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(191, 191, 191));

                worksheet.Cells[2, 1].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(191, 191, 191));
                worksheet.Cells[2, 2].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(191, 191, 191));
                worksheet.Cells[2, 3].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(191, 191, 191));

                worksheet.Cells[3, 1].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(191, 191, 191));
                worksheet.Cells[3, 2].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(191, 191, 191));
                worksheet.Cells[3, 3].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(191, 191, 191));

                worksheet.Cells[4, 1].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(191, 191, 191));
                worksheet.Cells[4, 2].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(191, 191, 191));
                worksheet.Cells[4, 3].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(191, 191, 191));

                worksheet.Cells[5, 1].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(191, 191, 191));
                worksheet.Cells[5, 2].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(191, 191, 191));
                worksheet.Cells[5, 3].Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.FromArgb(191, 191, 191));

                ExcelChart chart = worksheet.Drawings.AddChart("chart", eChartType.ColumnClustered);

                ExcelChartSerie serie = chart.Series.Add(worksheet.Cells[2, 3, 5, 3], worksheet.Cells[2, 1, 5, 1]);
                serie.HeaderAddress = worksheet.Cells[1, 3];

                chart.SetPosition(150, 10);
                chart.SetSize(500, 300);
                chart.Title.Text = "銷量走勢";
                chart.Title.Font.Color = Color.FromArgb(89, 89, 89);
                chart.Title.Font.Size = 15;
                chart.Title.Font.Bold = true;
                chart.Style = eChartStyle.Style15;
                chart.Legend.Border.LineStyle = eLineStyle.Solid;
                chart.Legend.Border.Fill.Color = Color.FromArgb(217, 217, 217);

                package.Save();
            }