利用openxml在Excel中插入图表
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1 using System.Collections.Generic; 2 using System.Linq; 3 using DOD = DocumentFormat.OpenXml.Drawing; 4 using DODC = DocumentFormat.OpenXml.Drawing.Charts; 5 using DODS = DocumentFormat.OpenXml.Drawing.Spreadsheet; 6 using DOS = DocumentFormat.OpenXml.Spreadsheet; 7 using DOX = DocumentFormat.OpenXml; 8 using pkg = DocumentFormat.OpenXml.Packaging; 9 10 namespace InsertChartTest 11 { 12 class Program 13 { 14 const string fileName = @"C:UsersAdministratorsource eposOpenXMLStudyOpenXMLStudySum100.xlsx"; 15 16 static void Main(string[] args) 17 { 18 string worksheetName = "Joe"; 19 string title = "New Chart"; 20 Dictionary<string, int> data = new Dictionary<string, int>(); 21 data.Add("abc", 1); 22 data.Add("dsa", 2); 23 InsertChartInSpreadsheet(fileName, worksheetName, title, data); 24 25 } 26 27 private static void InsertChartInSpreadsheet(string docName, string worksheetName, string title, 28 Dictionary<string, int> data) 29 { 30 using (pkg.SpreadsheetDocument document = pkg.SpreadsheetDocument.Open(docName, true)) 31 { 32 IEnumerable<DOS.Sheet> sheets = document.WorkbookPart.Workbook.Descendants<DOS.Sheet>(); 33 34 if (sheets == null || sheets.Count() <= 0) 35 return; 36 37 pkg.WorksheetPart worksheetPart = (pkg.WorksheetPart)document.WorkbookPart.GetPartById(sheets.First().Id); 38 39 System.Diagnostics.Debug.WriteLine("SheetID:{0}", sheets.First().Id); 40 41 // DOS.Worksheet worksheet = worksheetPart.Worksheet; 42 pkg.DrawingsPart drawingsPart = worksheetPart.AddNewPart<pkg.DrawingsPart>(); 43 44 worksheetPart.Worksheet.Append(new DOS.Drawing() 45 { 46 Id = worksheetPart.GetIdOfPart(drawingsPart) 47 }); 48 worksheetPart.Worksheet.Save(); 49 50 pkg.ChartPart chartPart = drawingsPart.AddNewPart<pkg.ChartPart>(); 51 52 //图表实例 53 chartPart.ChartSpace = new DODC.ChartSpace(); 54 55 chartPart.ChartSpace.Append( 56 new DODC.EditingLanguage() 57 { 58 Val = new DOX.StringValue("en-US") 59 }); 60 61 //图表最外层 62 DODC.Chart chart = chartPart.ChartSpace.AppendChild<DODC.Chart>(new DODC.Chart()); 63 64 //图形区 65 DODC.PlotArea plotArea = chart.AppendChild<DODC.PlotArea>(new DODC.PlotArea()); 66 67 //布局 68 DODC.Layout layout = plotArea.AppendChild<DODC.Layout>(new DODC.Layout()); 69 70 //柱形图 71 DODC.BarChart barChart = plotArea 72 .AppendChild<DODC.BarChart>( 73 new DODC.BarChart( 74 new DODC.BarDirection() 75 { 76 Val = new DOX.EnumValue<DODC.BarDirectionValues>(DODC.BarDirectionValues.Column) 77 }, 78 new DODC.BarGrouping() 79 { 80 Val = new DOX.EnumValue<DODC.BarGroupingValues>(DODC.BarGroupingValues.Clustered) 81 })); 82 83 uint i = 0; 84 85 foreach (string key in data.Keys) 86 { 87 //柱形图序列 88 DODC.BarChartSeries barChartSeries = barChart 89 .AppendChild<DODC.BarChartSeries>( 90 new DODC.BarChartSeries(//柱形图序列 91 new DODC.Index() 92 { 93 Val = new DOX.UInt32Value(i) 94 }, 95 new DODC.Order() 96 { 97 Val = new DOX.UInt32Value(i) 98 }, 99 new DODC.SeriesText( //系列文本 100 new DODC.NumericValue() 101 { 102 Text = key 103 }) 104 )); 105 106 //字符串常值 107 DODC.StringLiteral strLit = barChartSeries 108 .AppendChild<DODC.CategoryAxisData>( 109 new DODC.CategoryAxisData()) 110 .AppendChild<DODC.StringLiteral>( 111 new DODC.StringLiteral()); 112 113 strLit.Append(new DODC.PointCount() 114 { 115 Val = new DOX.UInt32Value(1U) 116 }); 117 118 strLit.AppendChild<DODC.StringPoint>(new DODC.StringPoint() 119 { 120 Index = new DOX.UInt32Value(0U) 121 }) 122 .Append(new DODC.NumericValue(key)); //原为title 123 124 //值常值 125 DODC.NumberLiteral numLit = barChartSeries 126 .AppendChild<DODC.Values>(new DODC.Values() 127 ).AppendChild<DODC.NumberLiteral>(new DODC.NumberLiteral() 128 ); 129 130 numLit.Append(new DODC.FormatCode("General")); 131 132 numLit.Append(new DODC.PointCount() 133 { 134 Val = new DOX.UInt32Value(1U) 135 }); 136 137 numLit.AppendChild<DODC.NumericPoint>(new DODC.NumericPoint() 138 { 139 Index = new DOX.UInt32Value(0u) 140 }).Append(new DODC.NumericValue(data[key].ToString())); 141 142 i++; 143 } 144 145 barChart.Append(new DODC.AxisId() 146 { 147 Val = new DOX.UInt32Value(48650112u) 148 }); 149 150 barChart.Append(new DODC.AxisId() 151 { 152 Val = new DOX.UInt32Value(48672768u) 153 }); 154 155 //分类坐标值 156 DODC.CategoryAxis catAx = plotArea.AppendChild<DODC.CategoryAxis>( 157 new DODC.CategoryAxis( 158 new DODC.AxisId() 159 { 160 Val = new DOX.UInt32Value(48650112u) 161 }, 162 new DODC.Scaling(new DODC.Orientation() 163 { 164 Val = new DOX.EnumValue<DODC.OrientationValues>(DODC.OrientationValues.MinMax) 165 }), 166 new DODC.AxisPosition()//坐标值位置 167 { 168 Val = new DOX.EnumValue<DODC.AxisPositionValues>(DODC.AxisPositionValues.Bottom) 169 }, 170 new DODC.TickLabelPosition()//标签位置 171 { 172 Val = new DOX.EnumValue<DODC.TickLabelPositionValues>(DODC.TickLabelPositionValues.NextTo) 173 }, 174 new DODC.CrossingAxis() 175 { 176 Val = new DOX.UInt32Value(48672768U) 177 }, 178 new DODC.Crosses() 179 { 180 Val = new DOX.EnumValue<DODC.CrossesValues>(DODC.CrossesValues.AutoZero) 181 }, 182 new DODC.AutoLabeled() 183 { 184 Val = new DOX.BooleanValue(true) 185 }, 186 new DODC.LabelAlignment() 187 { 188 Val = new DOX.EnumValue<DODC.LabelAlignmentValues>(DODC.LabelAlignmentValues.Center) 189 }, 190 new DODC.LabelOffset() 191 { 192 Val = new DOX.UInt16Value((ushort)100) 193 } 194 )); 195 196 //值坐标值 197 DODC.ValueAxis valAx = plotArea.AppendChild<DODC.ValueAxis>( 198 new DODC.ValueAxis( 199 new DODC.AxisId() 200 { 201 Val = new DOX.UInt32Value(48672768u) 202 }, 203 new DODC.Scaling( 204 new DODC.Orientation() 205 { 206 Val = new DOX.EnumValue<DODC.OrientationValues>(DODC.OrientationValues.MinMax) 207 }), 208 new DODC.AxisPosition() 209 { 210 Val = new DOX.EnumValue<DODC.AxisPositionValues>(DODC.AxisPositionValues.Left) 211 }, 212 new DODC.MajorGridlines(), 213 new DODC.NumberingFormat() 214 { 215 FormatCode = new DOX.StringValue("General"), 216 SourceLinked = new DOX.BooleanValue(true) 217 }, 218 new DODC.TickLabelPosition() 219 { 220 Val = new DOX.EnumValue<DODC.TickLabelPositionValues>(DODC.TickLabelPositionValues.NextTo) 221 }, 222 new DODC.CrossingAxis() 223 { 224 Val = new DOX.UInt32Value(48650112U) 225 }, 226 new DODC.Crosses() 227 { 228 Val = new DOX.EnumValue<DODC.CrossesValues>(DODC.CrossesValues.AutoZero) 229 }, 230 new DODC.CrossBetween() 231 { 232 Val = new DOX.EnumValue<DODC.CrossBetweenValues>(DODC.CrossBetweenValues.Between) 233 })); 234 235 236 //图例 237 DODC.Legend legend = chart.AppendChild<DODC.Legend>( 238 new DODC.Legend( 239 new DODC.LegendPosition() 240 { 241 Val = new DOX.EnumValue<DODC.LegendPositionValues>(DODC.LegendPositionValues.Right) //图例位置 242 })); 243 244 //图可见 245 chart.Append(new DODC.PlotVisibleOnly() 246 { 247 Val = new DOX.BooleanValue(true) 248 }); 249 250 chartPart.ChartSpace.Save(); 251 252 drawingsPart.WorksheetDrawing = new DODS.WorksheetDrawing(); 253 254 //图例和图形区域大小 255 DODS.TwoCellAnchor twoCellAnchor = drawingsPart.WorksheetDrawing.AppendChild<DODS.TwoCellAnchor>(new DODS.TwoCellAnchor()); 256 257 //图形区域大小 258 twoCellAnchor.Append(new DODS.FromMarker(new DODS.ColumnId("9"), 259 new DODS.ColumnOffset("581025"), 260 new DODS.RowId("17"), 261 new DODS.RowOffset("114300"))); 262 263 //图例区域大小 264 twoCellAnchor.Append(new DODS.ToMarker(new DODS.ColumnId("17"), 265 new DODS.ColumnOffset("276225"), 266 new DODS.RowId("32"), 267 new DODS.RowOffset("0"))); 268 269 270 //添加图形和图例到区域中 271 //图形框架 272 DODS.GraphicFrame graphicFrame = 273 twoCellAnchor.AppendChild<DODS.GraphicFrame>(new DODS.GraphicFrame()); 274 graphicFrame.Macro = ""; 275 276 //图表标题 277 graphicFrame.Append( 278 new DODS.NonVisualGraphicFrameProperties( 279 new DODS.NonVisualDrawingProperties() 280 { 281 Id = new DOX.UInt32Value(2u), 282 Name = "Chart 1" 283 }, 284 new DODS.NonVisualGraphicFrameDrawingProperties() 285 )); 286 287 //区域坐标 288 graphicFrame.Append( 289 new DODS.Transform( 290 new DOD.Offset() 291 { 292 X = 0L, 293 Y = 0L 294 }, 295 new DOD.Extents() 296 { 297 Cx = 0L, 298 Cy = 0L 299 } 300 )); 301 302 //把图形添加到区域中 303 graphicFrame.Append( 304 new DOD.Graphic( 305 new DOD.GraphicData( 306 new DODC.ChartReference() 307 { 308 Id = drawingsPart.GetIdOfPart(chartPart)//指定图形ID 309 }) 310 { Uri = "http://schemas.openxmlformats.org/drawingml/2006/chart" } 311 )); 312 313 twoCellAnchor.Append(new DODS.ClientData()); 314 315 drawingsPart.WorksheetDrawing.Save(); 316 317 } 318 } 319 } 320 }
运行上面代码得到图表如图：
注意：上面代码不支持重复运行
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