批量导入导出Excel，WPS，TXT，可按照系统是否安装OFFICE、WPS情况选择，导出是自动选择。
上效果图
1 /// <summary> 2 /// //获得当前你选择的Excel Sheet的所有名字 3 /// </summary> 4 /// <param name="filePath">文件路径</param> 5 /// <param name="ExcelType">1 Microsoft Excel 2 WPS Excel</param> 6 /// <returns></returns> 7 public static string[] GetExcelSheetNames(string filePath, int ExcelType) 8 { 9 try 10 { 11 if (ExcelType == 1) 12 { 13 Microsoft.Office.Interop.Excel.ApplicationClass excelApp = new Microsoft.Office.Interop.Excel.ApplicationClass(); 14 Microsoft.Office.Interop.Excel.Workbooks wbs = excelApp.Workbooks; 15 Microsoft.Office.Interop.Excel.Workbook wb = wbs.Open(filePath, Type.Missing, Type.Missing, Type.Missing, Type.Missing, 16 Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, 17 Type.Missing, Type.Missing, Type.Missing, Type.Missing); 18 int count = wb.Worksheets.Count; 19 string[] names = new string[count]; 20 for (int i = 1; i <= count; i++) 21 { 22 names[i - 1] = ((Microsoft.Office.Interop.Excel.Worksheet)wb.Worksheets[i]).Name; 23 } 24 return names; 25 } 26 else 27 { 28 ET.Application etApp; 29 ET.workbook etbook; 30 etApp = new ET.Application(); 31 etbook = new ET.workbook(); 32 etbook = (ET.workbook)etApp.Workbooks.Open(filePath, null, null, null, null, null, null, null, null, null, null, null, null); 33 int count = etbook.Worksheets.Count; 34 string[] names = new string[count]; 35 for (int i = 1; i <= count; i++) 36 { 37 names[i - 1] = ((ET.Worksheet)etbook.Worksheets[i]).Name; 38 } 39 return names; 40 } 41 } 42 catch 43 { 44 return null; 45 } 46 } 47 48 //引用命名空间 using Microsoft.Office.Interop.Excel;WPS的ET 49 /// <summary> 50 /// DataGridView导出文件到Microsoft Excel WPS Excel 文本文档 51 /// </summary> 52 /// <param name="gridView"></param> 53 /// <param name="excludeColumnsIndexList">排除列"0,1,2"</param> 54 /// <param name="fileName"></param> 55 /// <param name="sheetName"></param> 56 public static void ExportDataGridViewAsExcel(DataGridView gridView, string excludeColumnsIndexList,string fileName, string sheetName) 57 { 58 //导出到execl 59 try 60 { 61 SaveFileDialog saveFileDialog = new SaveFileDialog(); 62 saveFileDialog.Filter = "Microsoft Excel(*.xls)|*.xls|WPS Excel(*.xls)|*.xls|文本文档(*.txt)|*.txt"; 63 saveFileDialog.FileName = fileName; //dataGridView1.Rows[0].Cells[0].Value.ToString() + "幸运榜单_" + DateTime.Now.ToString("yyyymmddhhmmss") + ""; 64 saveFileDialog.FilterIndex = 0; 65 saveFileDialog.RestoreDirectory = true; 66 saveFileDialog.CreatePrompt = true; 67 saveFileDialog.Title = "导出文件保存为"; 68 // saveFileDialog.ShowDialog(); 69 if (saveFileDialog.ShowDialog() == DialogResult.OK) 70 { 71 string strName = saveFileDialog.FileName; 72 if (strName.Length != 0) 73 { 74 int rowscount = gridView.Rows.Count; 75 int colscount = gridView.Columns.Count; 76 if (rowscount <= 0) 77 { 78 MessageBox.Show("无数据需要保存 ", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information); 79 return; 80 } 81 if (colscount <= 0) 82 { 83 MessageBox.Show("无数据需要保存 ", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information); 84 return; 85 } 86 if (saveFileDialog.FilterIndex == 1) 87 { 88 if (rowscount > 65536) 89 { 90 MessageBox.Show("行太多(最大限制为 65536行)，不能保存! ", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information); 91 return; 92 } 93 if (colscount > 255) 94 { 95 MessageBox.Show("列太多（最大限制为 255列）, 不能保存! ", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information); 96 return; 97 } 98 try 99 { 100 //this.toolStripProgressBar1.Visible = true; 101 System.Reflection.Missing miss = System.Reflection.Missing.Value; 102 Microsoft.Office.Interop.Excel.ApplicationClass excel = new Microsoft.Office.Interop.Excel.ApplicationClass(); 103 excel.Application.Workbooks.Add(true); ; 104 excel.Visible = false;//若是true，则在导出的时候会显示EXcel界面。 105 if (excel == null) 106 { 107 MessageBox.Show("Microsoft Excel无法启动！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error); 108 return; 109 } 110 Microsoft.Office.Interop.Excel.Workbooks books = (Microsoft.Office.Interop.Excel.Workbooks)excel.Workbooks; 111 Microsoft.Office.Interop.Excel.Workbook book = (Microsoft.Office.Interop.Excel.Workbook)(books.Add(miss)); 112 Microsoft.Office.Interop.Excel.Worksheet sheet = (Microsoft.Office.Interop.Excel.Worksheet)book.ActiveSheet; 113 sheet.Name = sheetName; 114 string[,] datas = new string[rowscount + 1, colscount]; 115 int m = 0, n = 0; 116 //生成列名称 这里i是从1开始的 因为我第0列是个隐藏列ID 没必要写进去 117 for (int i = 0; i < gridView.ColumnCount; i++) 118 { 119 if (("," + excludeColumnsIndexList + ",").IndexOf("," + i.ToString() + ",") == 0) 120 { 121 continue; 122 } 123 if (gridView.Columns[i].Visible) 124 { 125 datas[0, m] = gridView.Columns[i].HeaderText.ToString(); 126 m++; 127 } 128 129 } 130 //填充数据 131 for (int i = 0; i < gridView.RowCount; i++) 132 { 133 //j也是从1开始 原因如上 每个人需求不一样 134 n = 0; 135 for (int j = 0; j < gridView.ColumnCount; j++) 136 { 137 if (("," + excludeColumnsIndexList + ",").IndexOf("," + j.ToString() + ",") == 0) 138 { 139 continue; 140 } 141 if (gridView.Columns[j].Visible) 142 { 143 if (gridView[j, i].Value.GetType() == typeof(string)) 144 { 145 datas[i+1, n] = "\'" + gridView[j, i].Value.ToString(); 146 } 147 else 148 { 149 datas[i+1, n] = gridView[j, i].Value.ToString(); 150 } 151 n++; 152 } 153 } 154 //this.toolStripProgressBar1.Value += 100 / gridView.RowCount; 155 } 156 int exportRowCount = rowscount + 1; 157 Microsoft.Office.Interop.Excel.Range range = sheet.get_Range("A1", IndexToColumn(colscount) + exportRowCount.ToString()); 158 range.Value2 = datas; 159 160 sheet.Columns.EntireColumn.AutoFit(); // Automatically change the column width 161 162 book.SaveAs(strName, Microsoft.Office.Interop.Excel.XlFileFormat.xlWorkbookNormal, miss, miss, miss, 163 miss, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlShared, miss, miss, miss, 164 miss, miss); 165 //sheet.SaveAs(strName, miss, miss, miss, miss, miss, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, miss, miss, miss); 166 book.Close(false, miss, miss); 167 books.Close(); 168 excel.Quit(); 169 System.Runtime.InteropServices.Marshal.ReleaseComObject(sheet); 170 System.Runtime.InteropServices.Marshal.ReleaseComObject(book); 171 System.Runtime.InteropServices.Marshal.ReleaseComObject(books); 172 System.Runtime.InteropServices.Marshal.ReleaseComObject(excel); 173 174 GC.Collect(); 175 } 176 catch (Exception ex) 177 { 178 MessageBox.Show(ex.Message, "导出失败,\n1、如果未安装Microsoft Excel，请导出时尝试选择保存到WPS Excel或者文本文档！\n2、请确保导出到的目标文件未打开，否则程序占用可能导致失败。\n3、如已关闭还提示错误，请尝试在任务管理器结束Excel程序。"); 179 return; 180 } 181 182 } 183 else if (saveFileDialog.FilterIndex == 2) 184 { 185 if (rowscount > 65536) 186 { 187 MessageBox.Show("行太多(最大限制为 65536行)，不能保存! ", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information); 188 return; 189 } 190 if (colscount > 255) 191 { 192 MessageBox.Show("列太多（最大限制为 255列）, 不能保存! ", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information); 193 return; 194 } 195 try 196 { 197 ET.Application etApp; 198 //获取工作表表格 199 etApp = new ET.Application(); 200 etApp.Workbooks.Add(Type.Missing); 201 etApp.Visible = false; 202 if (etApp == null) 203 { 204 MessageBox.Show("WPS Excel无法启动！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error); 205 return; 206 } 207 System.Reflection.Missing miss = System.Reflection.Missing.Value; 208 ET.Workbooks books = (ET.Workbooks)etApp.Workbooks; 209 ET.workbook book = (ET.workbook)(books.Add(miss)); 210 ET.Worksheet sheet = (ET.Worksheet)book.ActiveSheet; 211 sheet.Name = sheetName; 212 string[,] datas = new string[rowscount + 1, colscount]; 213 int m = 0, n = 0; 214 //生成列名称 这里i是从1开始的 因为我第0列是个隐藏列ID 没必要写进去 215 for (int i = 0; i < gridView.ColumnCount; i++) 216 { 217 if (("," + excludeColumnsIndexList + ",").IndexOf("," + i.ToString() + ",") == 0) 218 { 219 continue; 220 } 221 if (gridView.Columns[i].Visible) 222 { 223 datas[0, m] = gridView.Columns[i].HeaderText.ToString(); 224 m++; 225 } 226 227 } 228 //填充数据 229 for (int i = 0; i < gridView.RowCount; i++) 230 { 231 //j也是从1开始 原因如上 每个人需求不一样 232 n = 0; 233 for (int j = 0; j < gridView.ColumnCount; j++) 234 { 235 if (("," + excludeColumnsIndexList + ",").IndexOf("," + j.ToString() + ",") == 0) 236 { 237 continue; 238 } 239 if (gridView.Columns[j].Visible) 240 { 241 if (gridView[j, i].Value.GetType() == typeof(string)) 242 { 243 datas[i + 1, n] = "\'" + gridView[j, i].Value.ToString(); 244 } 245 else 246 { 247 datas[i + 1, n] = gridView[j, i].Value.ToString(); 248 } 249 n++; 250 } 251 } 252 //this.toolStripProgressBar1.Value += 100 / gridView.RowCount; 253 } 254 int exportRowCount = rowscount + 1; 255 ET.Range range = sheet.get_Range("A1", IndexToColumn(colscount) + exportRowCount.ToString()); 256 range.Value2 = datas; 257 sheet.Columns.EntireColumn.AutoFit(); // Automatically change the column width 258 book.SaveAs(strName, ET.XlFileFormat.xlWorkbookNormal, miss, miss, miss, miss, ET.ETSaveAsAccessMode.etShared, miss, miss, miss, miss); 259 book.Close(false, miss, miss); 260 books.Close(); 261 etApp.Quit(); 262 System.Runtime.InteropServices.Marshal.ReleaseComObject(sheet); 263 System.Runtime.InteropServices.Marshal.ReleaseComObject(book); 264 System.Runtime.InteropServices.Marshal.ReleaseComObject(books); 265 System.Runtime.InteropServices.Marshal.ReleaseComObject(etApp); 266 267 GC.Collect(); 268 } 269 catch (Exception ex) 270 { 271 MessageBox.Show("导出失败,\n1、如果未安装WPS Excel，请导出时尝试选择保存到Microsoft Excel或者文本文档！\n2、请确保导出到的目标文件未打开，否则程序占用可能导致失败。\n3、如已关闭还提示错误，请尝试在任务管理器结束Excel程序。\n系统消息：" + ex.Message, "错误提示"); 272 return; 273 } 274 275 } 276 else if (saveFileDialog.FilterIndex == 3) 277 { 278 279 280 FileStream fs = new FileStream(strName, FileMode.OpenOrCreate, FileAccess.Write); 281 StreamWriter sw = new StreamWriter(fs); 282 sw.BaseStream.Seek(0, SeekOrigin.End); 283 string str = ""; 284 int n = 0; 285 for (int i = 0; i < gridView.ColumnCount; i++) 286 { 287 if (gridView.Columns[i].Visible) 288 { 289 n++; 290 if (n == 1) 291 { 292 str += gridView.Columns[i].HeaderText.ToString(); 293 } 294 else 295 { 296 str += "," + gridView.Columns[i].HeaderText.ToString(); 297 } 298 } 299 } 300 sw.WriteLine(str); 301 302 //填充数据 303 for (int i = 0; i < gridView.RowCount; i++) 304 { 305 str = ""; 306 int m = 0; 307 //j也是从1开始 原因如上 每个人需求不一样 308 for (int j = 0; j < gridView.ColumnCount; j++) 309 { 310 if (gridView.Columns[j].Visible) 311 { 312 m++; 313 if (m == 1) 314 { 315 str += gridView[j, i].Value.ToString(); 316 } 317 else 318 { 319 str += "," + gridView[j, i].Value.ToString(); 320 } 321 } 322 323 } 324 sw.WriteLine(str); 325 //this.toolStripProgressBar1.Value += 100 / gridView.RowCount; 326 } 327 328 sw.Flush(); 329 sw.Close(); 330 fs.Close(); 331 332 333 } 334 MessageBox.Show("数据已经成功导出!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information); 335 return; 336 //this.toolStripProgressBar1.Value = 0; 337 338 //System.Diagnostics.Process.Start(strName); 339 } 340 } 341 } 342 catch (Exception ex) 343 { 344 MessageBox.Show("导出失败,\n1、如果未安装Microsoft Excel或者WPS Excel，请导出时尝试选择保存到文本文档！\n2、请确保导出到的目标文件未打开，否则程序占用可能导致失败。\n3、如已关闭还提示错误，请尝试在任务管理器结束Excel程序。\n系统消息：" + ex.Message, "错误提示"); 345 return; 346 } 347 } 348 //引用命名空间 using Microsoft.Office.Interop.Excel;WPS的ET 349 /// <summary> 350 /// DataTable导出文件到Microsoft Excel WPS Excel 文本文档 351 /// </summary> 352 /// <param name="dt"></param> 353 /// <param name="fileName"></param> 354 /// <param name="sheetName"></param> 355 public static void ExportDataTableAsExcel(System.Data.DataTable dt, string fileName, string sheetName) 356 { 357 //导出到execl 358 try 359 { 360 SaveFileDialog saveFileDialog = new SaveFileDialog(); 361 saveFileDialog.Filter = "Microsoft Excel(*.xls)|*.xls|WPS Excel(*.xls)|*.xls|文本文档(*.txt)|*.txt"; 362 saveFileDialog.FileName = fileName; //dataGridView1.Rows[0].Cells[0].Value.ToString() + "幸运榜单_" + DateTime.Now.ToString("yyyymmddhhmmss") + ""; 363 saveFileDialog.FilterIndex = 0; 364 saveFileDialog.RestoreDirectory = true; 365 saveFileDialog.CreatePrompt = true; 366 saveFileDialog.Title = "导出文件保存为"; 367 // saveFileDialog.ShowDialog(); 368 if (saveFileDialog.ShowDialog() == DialogResult.OK) 369 { 370 string strName = saveFileDialog.FileName; 371 if (strName.Length != 0) 372 { 373 int rowscount = dt.Rows.Count; 374 int colscount = dt.Columns.Count; 375 if (rowscount <= 0) 376 { 377 MessageBox.Show("无数据需要保存 ", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information); 378 return; 379 } 380 381 if (colscount <= 0) 382 { 383 MessageBox.Show("无数据需要保存 ", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information); 384 return; 385 } 386 if (saveFileDialog.FilterIndex == 1) 387 { 388 389 if (rowscount > 65536) 390 { 391 MessageBox.Show("行太多(最大限制为 65536行)，不能保存! ", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information); 392 return; 393 } 394 if (colscount > 255) 395 { 396 MessageBox.Show("列太多（最大限制为 255列）, 不能保存! ", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information); 397 return; 398 } 399 try 400 { 401 402 //this.toolStripProgressBar1.Visible = true; 403 System.Reflection.Missing miss = System.Reflection.Missing.Value; 404 Microsoft.Office.Interop.Excel.ApplicationClass excel = new Microsoft.Office.Interop.Excel.ApplicationClass(); 405 excel.Application.Workbooks.Add(true); ; 406 excel.Visible = false;//若是true，则在导出的时候会显示EXcel界面。 407 if (excel == null) 408 { 409 MessageBox.Show("Microsoft Excel无法启动！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error); 410 return; 411 } 412 Microsoft.Office.Interop.Excel.Workbooks books = (Microsoft.Office.Interop.Excel.Workbooks)excel.Workbooks; 413 Microsoft.Office.Interop.Excel.Workbook book = (Microsoft.Office.Interop.Excel.Workbook)(books.Add(miss)); 414 Microsoft.Office.Interop.Excel.Worksheet sheet = (Microsoft.Office.Interop.Excel.Worksheet)book.ActiveSheet; 415 sheet.Name = sheetName; 416 417 string[,] datas = new string[rowscount + 1, colscount]; 418 //生成列名称 这里i是从1开始的 因为我第0列是个隐藏列ID 没必要写进去 419 for (int i = 0; i < dt.Columns.Count; i++) 420 { 421 datas[0, i] = dt.Columns[i].ColumnName.Trim(); 422 } 423 424 //填充数据 425 for (int i = 0; i < dt.Rows.Count; i++) 426 { 427 //j也是从1开始 原因如上 每个人需求不一样 428 for (int j = 0; j < dt.Columns.Count; j++) 429 { 430 431 if (dt.Rows[i][j].GetType() == typeof(string)) 432 { 433 datas[i + 1, j] = "\'" + dt.Rows[i][j].ToString(); 434 } 435 else 436 { 437 datas[i + 1, j] = dt.Rows[i][j].ToString(); 438 } 439 440 441 } 442 //this.toolStripProgressBar1.Value += 100 / gridView.RowCount; 443 } 444 int exportRowCount = rowscount + 1; 445 Microsoft.Office.Interop.Excel.Range range = sheet.get_Range("A1", IndexToColumn(colscount) + exportRowCount.ToString()); 446 range.Value2 = datas; 447 448 sheet.Columns.EntireColumn.AutoFit(); // Automatically change the column width 449 450 book.SaveAs(strName, Microsoft.Office.Interop.Excel.XlFileFormat.xlWorkbookNormal, miss, miss, miss, 451 miss, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlShared, miss, miss, miss, 452 miss, miss); 453 454 //sheet.SaveAs(strName, miss, miss, miss, miss, miss, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, miss, miss, miss); 455 book.Close(false, miss, miss); 456 books.Close(); 457 excel.Quit(); 458 System.Runtime.InteropServices.Marshal.ReleaseComObject(sheet); 459 System.Runtime.InteropServices.Marshal.ReleaseComObject(book); 460 System.Runtime.InteropServices.Marshal.ReleaseComObject(books); 461 System.Runtime.InteropServices.Marshal.ReleaseComObject(excel); 462 463 GC.Collect(); 464 } 465 catch (Exception ex) 466 { 467 MessageBox.Show("导出失败,\n1、如果未安装Microsoft Excel，请导出时尝试选择保存到WPS Excel或者文本文档！\n2、请确保导出到的目标文件未打开，否则程序占用可能导致失败。\n3、如已关闭还提示错误，请尝试在任务管理器结束Excel程序。\n系统消息：" + ex.Message, "错误提示"); 468 return; 469 } 470 } 471 if (saveFileDialog.FilterIndex == 2) 472 { 473 474 if (rowscount > 65536) 475 { 476 MessageBox.Show("行太多(最大限制为 65536行)，不能保存! ", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information); 477 return; 478 } 479 if (colscount > 255) 480 { 481 MessageBox.Show("列太多（最大限制为 255列）, 不能保存! ", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information); 482 return; 483 } 484 try 485 { 486 ET.Application etApp; 487 //获取工作表表格 488 etApp = new ET.Application(); 489 etApp.Workbooks.Add(Type.Missing); 490 etApp.Visible = false; 491 if (etApp == null) 492 { 493 MessageBox.Show("WPS Excel无法启动！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error); 494 return; 495 } 496 System.Reflection.Missing miss = System.Reflection.Missing.Value; 497 ET.Workbooks books = (ET.Workbooks)etApp.Workbooks; 498 ET.workbook book = (ET.workbook)(books.Add(miss)); 499 ET.Worksheet sheet = (ET.Worksheet)book.ActiveSheet; 500 sheet.Name = sheetName; 501 502 string[,] datas = new string[rowscount + 1, colscount]; 503 //生成列名称 这里i是从1开始的 因为我第0列是个隐藏列ID 没必要写进去 504 for (int i = 0; i < dt.Columns.Count; i++) 505 { 506 datas[0, i] = dt.Columns[i].ColumnName.Trim(); 507 } 508 509 //填充数据 510 for (int i = 0; i < dt.Rows.Count; i++) 511 { 512 //j也是从1开始 原因如上 每个人需求不一样 513 for (int j = 0; j < dt.Columns.Count; j++) 514 { 515 516 if (dt.Rows[i][j].GetType() == typeof(string)) 517 { 518 datas[i + 1, j] = "\'" + dt.Rows[i][j].ToString(); 519 } 520 else 521 { 522 datas[i + 1, j] = dt.Rows[i][j].ToString(); 523 } 524 } 525 //this.toolStripProgressBar1.Value += 100 / gridView.RowCount; 526 } 527 int exportRowCount = rowscount + 1; 528 ET.Range range = sheet.get_Range("A1", IndexToColumn(colscount) + exportRowCount.ToString()); 529 range.Value2 = datas; 530 sheet.Columns.EntireColumn.AutoFit(); // Automatically change the column width 531 book.SaveAs(strName, ET.XlFileFormat.xlWorkbookNormal, miss, miss, miss, miss, ET.ETSaveAsAccessMode.etShared, miss, miss, miss, miss); 532 book.Close(false, miss, miss); 533 books.Close(); 534 etApp.Quit(); 535 System.Runtime.InteropServices.Marshal.ReleaseComObject(sheet); 536 System.Runtime.InteropServices.Marshal.ReleaseComObject(book); 537 System.Runtime.InteropServices.Marshal.ReleaseComObject(books); 538 System.Runtime.InteropServices.Marshal.ReleaseComObject(etApp); 539 540 GC.Collect(); 541 } 542 catch (Exception ex) 543 { 544 MessageBox.Show("导出失败,\n1、如果未安装WPS Excel，请导出时尝试选择保存到Microsoft Excel或者文本文档！\n2、请确保导出到的目标文件未打开，否则程序占用可能导致失败。\n3、如已关闭还提示错误，请尝试在任务管理器结束Excel程序。\n系统消息：" + ex.Message, "错误提示"); 545 return; 546 } 547 } 548 else if (saveFileDialog.FilterIndex == 2) 549 { 550 551 552 FileStream fs = new FileStream(strName, FileMode.OpenOrCreate, FileAccess.Write); 553 StreamWriter sw = new StreamWriter(fs); 554 sw.BaseStream.Seek(0, SeekOrigin.End); 555 string str = ""; 556 for (int i = 0; i < dt.Columns.Count; i++) 557 { 558 if (i == 0) 559 { 560 str += dt.Columns[i].ColumnName.Trim(); 561 } 562 else 563 { 564 str += "," + dt.Columns[i].ColumnName.Trim(); 565 } 566 } 567 sw.WriteLine(str); 568 569 //填充数据 570 for (int i = 0; i < dt.Rows.Count; i++) 571 { 572 str = ""; 573 //j也是从1开始 原因如上 每个人需求不一样 574 for (int j = 0; j < dt.Columns.Count; j++) 575 { 576 if (j == 0) 577 { 578 str += dt.Rows[i][j].ToString(); 579 } 580 else 581 { 582 str += "," + dt.Rows[i][j].ToString(); 583 } 584 585 } 586 sw.WriteLine(str); 587 //this.toolStripProgressBar1.Value += 100 / gridView.RowCount; 588 } 589 590 sw.Flush(); 591 sw.Close(); 592 fs.Close(); 593 594 595 } 596 MessageBox.Show("数据已经成功导出!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information); 597 //this.toolStripProgressBar1.Value = 0; 598 599 //System.Diagnostics.Process.Start(strName); 600 } 601 } 602 } 603 catch (Exception ex) 604 { 605 MessageBox.Show(ex.Message, "导出失败,\n1、如果未安装Microsoft Excel或者WPS Excel，请导出时尝试选择保存到文本文档！\n2、请确保导出到的目标文件未打开，否则程序占用可能导致失败。\n3、如已关闭还提示错误，请尝试在任务管理器结束Excel程序。"); 606 } 607 }