C#导出Excel的示例详解
时间：2022-06-25 07:48:13 编辑：袖梨 来源：一聚教程网
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 | using System;using System.Collections.Generic;using System.Text;using System.Data;using System.Windows.Forms;using System.Reflection; namespace DMS{/// <summary>/// C#操作<a href="http://www.111com.net/office/145249.htm" target="_blank">Excel</a>类/// </summary>class ExcelOperate{//法一//public bool DataSetToExcel(DataSet dataSet, bool isShowExcle)//{// DataTable dataTable = dataSet.Tables[0];// int rowNumber = dataTable.Rows.Count;// int columnNumber = dataTable.Columns.Count; // if (rowNumber == 0)// {// MessageBox.Show("没有任何数据可以导入到Excel文件！");// return false;// } // //建立Excel对象// Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();// excel.Application.Workbooks.Add(true);// excel.Visible = isShowExcle;//是否打开该Excel文件 // //填充数据// for (int c = 0; c < rowNumber; c++)// {// for (int j = 0; j < columnNumber; j++)// {// excel.Cells[c + 1, j + 1] = dataTable.Rows[c].ItemArray[j];// }// } // return true;//} //法二//public bool DataSetToExcel(DataSet dataSet, bool isShowExcle)//{// DataTable dataTable = dataSet.Tables[0];// int rowNumber = dataTable.Rows.Count; // int rowIndex = 1;// int colIndex = 0; // if (rowNumber == 0)// {// return false;// } // //建立Excel对象// Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();// excel.Application.Workbooks.Add(true);// excel.Visible = isShowExcle; // //生成字段名称// foreach (DataColumn col in dataTable.Columns)// {// colIndex++;// excel.Cells[1, colIndex] = col.ColumnName;// } // //填充数据// foreach (DataRow row in dataTable.Rows)// {// rowIndex++;// colIndex = 0;// foreach (DataColumn col in dataTable.Columns)// {// colIndex++;// excel.Cells[rowIndex, colIndex] = row[col.ColumnName];// }// } // return true;//} //法三（速度最快）/// <summary>/// 将数据集中的数据导出到EXCEL文件/// </summary>/// <param name="dataSet">输入数据集/// <param name="isShowExcle">是否显示该EXCEL文件/// <returns></returns>public bool DataSetToExcel(DataSet dataSet, bool isShowExcle){DataTable dataTable = dataSet.Tables[0];int rowNumber = dataTable.Rows.Count;//不包括字段名int columnNumber = dataTable.Columns.Count;int colIndex = 0; if (rowNumber == 0) {return false;} //建立Excel对象 Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();//excel.Application.Workbooks.Add(true);Microsoft.Office.Interop.Excel.Workbook workbook = excel.Workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];excel.Visible = isShowExcle;//Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)excel.Worksheets[1];Microsoft.Office.Interop.Excel.Range range; //生成字段名称 foreach (DataColumn col in dataTable.Columns){colIndex++;excel.Cells[1, colIndex] = col.ColumnName;} object[,] objData = new object[rowNumber, columnNumber]; for (int r = 0; r < rowNumber; r++) {for (int c = 0; c < columnNumber; c++){objData[r, c] = dataTable.Rows[r][c];}//Application.DoEvents();} // 写入Excel range = worksheet.get_Range(excel.Cells[2, 1], excel.Cells[rowNumber + 1, columnNumber]);//range.NumberFormat = "@";//设置单元格为文本格式range.Value2 = objData;worksheet.get_Range(excel.Cells[2, 1], excel.Cells[rowNumber + 1, 1]).NumberFormat = "yyyy-m-d h:mm"; return true; } //法四//public bool DataSetToExcel(DataSet dataSet, bool isShowExcle)//{// DataTable dataTable = dataSet.Tables[0];// int rowNumber = dataTable.Rows.Count;// int columnNumber = dataTable.Columns.Count;// String stringBuffer = ""; // if (rowNumber == 0)// {// MessageBox.Show("没有任何数据可以导入到Excel文件！");// return false;// } // //建立Excel对象// Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();// excel.Application.Workbooks.Add(true);// excel.Visible = isShowExcle;//是否打开该Excel文件 // //填充数据// for (int i = 0; i < rowNumber; i++)// {// for (int j = 0; j < columnNumber; j++)// {// stringBuffer += dataTable.Rows[i].ItemArray[j].ToString();// if (j < columnNumber - 1)// {// stringBuffer += "t";// }// }// stringBuffer += "n";// }// Clipboard.Clear();// Clipboard.SetDataObject(stringBuffer);// ((Microsoft.Office.Interop.Excel.Range)excel.Cells[1, 1]).Select();// ((Microsoft.Office.Interop.Excel.Worksheet)excel.ActiveWorkbook.ActiveSheet).Paste(Missing.Value, Missing.Value);// Clipboard.Clear(); // return true;//} //public bool DataSetToExcel(DataSet dataSet, string fileName, bool isShowExcle)//{// DataTable dataTable = dataSet.Tables[0];// int rowNumber = dataTable.Rows.Count;// int columnNumber = dataTable.Columns.Count; // if (rowNumber == 0)// {// MessageBox.Show("没有任何数据可以导入到Excel文件！");// return false;// } // //建立Excel对象// Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();// Microsoft.Office.Interop.Excel.Workbook workBook = excel.Application.Workbooks.Add(true);// excel.Visible = false;//是否打开该Excel文件 // //填充数据// for (int i = 0; i < rowNumber; i++)// {// for (int j = 0; j < columnNumber; j++)// {// excel.Cells[i + 1, j + 1] = dataTable.Rows[i].ItemArray[j];// }// } // //string fileName = path + "" + DateTime.Now.ToString().Replace(':', '_') + ".xls";// workBook.SaveAs(fileName, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value); // try// {// workBook.Saved = true;// excel.UserControl = false;// //excelapp.Quit();// }// catch (Exception exception)// {// MessageBox.Show(exception.Message);// }// finally// {// workBook.Close(Microsoft.Office.Interop.Excel.XlSaveAction.xlSaveChanges, Missing.Value, Missing.Value);// excel.Quit();// } // if (isShowExcle)// {// System.Diagnostics.Process.Start(fileName);// }// return true;//} //public bool DataSetToExcel(DataSet dataSet, string fileName, bool isShowExcle)//{// DataTable dataTable = dataSet.Tables[0];// int rowNumber = dataTable.Rows.Count;//不包括字段名// int columnNumber = dataTable.Columns.Count;// int colIndex = 0; // if (rowNumber == 0)// {// MessageBox.Show("没有任何数据可以导入到Excel文件！");// return false;// } // //建立Excel对象// Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();// //excel.Application.Workbooks.Add(true);// Microsoft.Office.Interop.Excel.Workbook workbook = excel.Workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);// Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];// excel.Visible = isShowExcle;// //Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)excel.Worksheets[1];// worksheet.Name = "挠度数据";// Microsoft.Office.Interop.Excel.Range range; // //生成字段名称// foreach (DataColumn col in dataTable.Columns)// {// colIndex++;// excel.Cells[1, colIndex] = col.ColumnName;// } // object[,] objData = new object[rowNumber, columnNumber]; // for (int r = 0; r < rowNumber; r++)// {// for (int c = 0; c < columnNumber; c++)// {// objData[r, c] = dataTable.Rows[r][c];// }// //Application.DoEvents();// } // // 写入Excel// range = worksheet.get_Range(excel.Cells[2, 1], excel.Cells[rowNumber + 1, columnNumber]);// //range.NumberFormat = "@";//设置单元格为文本格式// range.Value2 = objData;// worksheet.get_Range(excel.Cells[2, 1], excel.Cells[rowNumber + 1, 1]).NumberFormat = "yyyy-m-d h:mm"; // //string fileName = path + "" + DateTime.Now.ToString().Replace(':', '_') + ".xls";// workbook.SaveAs(fileName, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value); // try// {// workbook.Saved = true;// excel.UserControl = false;// //excelapp.Quit();// }// catch (Exception exception)// {// MessageBox.Show(exception.Message);// }// finally// {// workbook.Close(Microsoft.Office.Interop.Excel.XlSaveAction.xlSaveChanges, Missing.Value, Missing.Value);// excel.Quit();// } // //if (isShowExcle)// //{// // System.Diagnostics.Process.Start(fileName);// //}// return true;//} /// <summary>/// 将数据集中的数据保存到EXCEL文件/// </summary>/// <param name="dataSet">输入数据集/// <param name="fileName">保存EXCEL文件的绝对路径名/// <param name="isShowExcle">是否打开EXCEL文件/// <returns></returns>public bool DataSetToExcel(DataSet dataSet, string fileName, bool isShowExcle){DataTable dataTable = dataSet.Tables[0];int rowNumber = dataTable.Rows.Count;//不包括字段名int columnNumber = dataTable.Columns.Count;int colIndex = 0; if (rowNumber == 0) {MessageBox.Show("没有任何数据可以导入到Excel文件！");return false;} //建立Excel对象 Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();//excel.Application.Workbooks.Add(true);Microsoft.Office.Interop.Excel.Workbook workbook = excel.Workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];excel.Visible = false;//Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)excel.Worksheets[1];Microsoft.Office.Interop.Excel.Range range; //生成字段名称 foreach (DataColumn col in dataTable.Columns){colIndex++;excel.Cells[1, colIndex] = col.ColumnName;} object[,] objData = new object[rowNumber, columnNumber]; for (int r = 0; r < rowNumber; r++) {for (int c = 0; c < columnNumber; c++){objData[r, c] = dataTable.Rows[r][c];}//Application.DoEvents();} // 写入Excel range = worksheet.get_Range(excel.Cells[2, 1], excel.Cells[rowNumber + 1, columnNumber]);//range.NumberFormat = "@";//设置单元格为文本格式range.Value2 = objData;worksheet.get_Range(excel.Cells[2, 1], excel.Cells[rowNumber + 1, 1]).NumberFormat = "yyyy-m-d h:mm"; //string fileName = path + "" + DateTime.Now.ToString().Replace(':', '_') + ".xls"; workbook.SaveAs(fileName, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value); try{workbook.Saved = true;excel.UserControl = false;//excelapp.Quit();}catch (Exception exception){MessageBox.Show(exception.Message);}finally{workbook.Close(Microsoft.Office.Interop.Excel.XlSaveAction.xlSaveChanges, Missing.Value, Missing.Value);excel.Quit();} if (isShowExcle) {System.Diagnostics.Process.Start(fileName);}return true;}}} |
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