EPPlus从枢轴创build图表

我在.Net中使用EPPlus，并创build了一个包含行字段和摘要数据字段的数据透视表。

有谁知道如何从数据透视表创build图表？ 而我不知道数据透视表的范围。

这是我的代码：

static void DT2XL(DataTable dt, ExcelPackage excel) { var wsData = excel.Workbook.Worksheets["Eco-Data"]; var wsPivot = excel.Workbook.Worksheets["Eco-Pivot"]; if (wsData == null) wsData = excel.Workbook.Worksheets.Add("Eco-Data"); if (wsPivot == null) wsPivot = excel.Workbook.Worksheets.Add("Eco-Pivot"); wsData.Cells["A1"].LoadFromDataTable(dt, true, OfficeOpenXml.Table.TableStyles.Medium6); foreach (DataColumn col in dt.Columns) { if (col.DataType == typeof(System.DateTime)) { var colNumber = col.Ordinal + 1; var range = wsData.Cells[2, colNumber, dt.Rows.Count + 1, colNumber]; range.Style.Numberformat.Format = "dd.MM.yyyy"; } } var dataRange = wsData.Cells[wsData.Dimension.Address.ToString()]; dataRange.AutoFitColumns(); var pivotTable = wsPivot.PivotTables.Add(wsPivot.Cells["A1"], dataRange, "EcoPivotTable"); pivotTable.MultipleFieldFilters = true; pivotTable.RowGrandTotals = true; pivotTable.ColumGrandTotals = true; pivotTable.Compact = true; pivotTable.CompactData = true; pivotTable.GridDropZones = false; pivotTable.Outline = false; pivotTable.OutlineData = false; pivotTable.ShowError = true; pivotTable.ErrorCaption = "[error]"; pivotTable.ShowHeaders = true; pivotTable.UseAutoFormatting = true; pivotTable.ApplyWidthHeightFormats = true; pivotTable.ShowDrill = true; pivotTable.FirstDataCol = 3; pivotTable.RowHeaderCaption = "Үзүүлэлтүүд"; pivotTable.GrandTotalCaption = "Нийт"; foreach (DataColumn c in dt.Columns) { var field = pivotTable.Fields[c.ColumnName]; if (c.ColumnName.ToLower().StartsWith("column") || c.ColumnName.ToLower().StartsWith("row")) pivotTable.RowFields.Add(field); else if (c.ColumnName.ToLower().StartsWith("data")) pivotTable.DataFields.Add(field); } //I want to create a chart from 'pivotTable' //... //... //... //... //... } 

谢谢！

Answer 1

这里是要创build一个数据透视图的代码：

  var reportFilterNames = new List<string>(); //TODO: Fill with column names from DataTable var valueNames = new List<string>(); //TODO: Fill with column names from DataTable ExcelWorksheet dataWorksheet = package.Workbook.Worksheets[report.ReportType]; ExcelRange dataRange = dataWorksheet.Cells["A1:" + dataWorksheet.Dimension.End.Address]; ExcelWorksheet pivotWorksheet = package.Workbook.Worksheets.Add(dt.TableName); ExcelRange pivotDataRange = pivotWorksheet.Cells["A" + (2 + reportFilterNames.Count)]; ExcelPivotTable pivotTable = pivotWorksheet.PivotTables.Add(pivotDataRange, dataRange, "Stats"); pivotTable.DataOnRows = false; pivotTable.RowFields.Add(pivotTable.Fields["DATE"]); foreach (string reportFilterName in reportFilterNames) pivotTable.PageFields.Add(pivotTable.Fields[reportFilterName]); foreach (string valueName in valueNames) pivotTable.DataFields.Add(pivotTable.Fields[valueName]); var chart = pivotWorksheet.Drawings.AddChart("PivotChart", eChartType.Line, pivotTable); chart.SetPosition(1, 0, 4, 0); chart.SetSize(1200, 800);