本文实例为大家分享了C#导出Excel的具体代码，供大家参考，具体内容如下
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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Excel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>/// <param name="isShowExcle">是否显示该EXCEL文件</param>/// <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>/// <param name="fileName">保存EXCEL文件的绝对路径名</param>/// <param name="isShowExcle">是否打开EXCEL文件</param>/// <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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原文链接：http://www.cnblogs.com/yellowcool/p/7447116.html
