本文实例为大家分享了Winform实现导入导出Excel文件的具体代码，供大家参考，具体内容如下

/// <summary> /// 导出Excel文件 /// </summary> /// /// <param name="dataSet"></param> /// <param name="dataTable">数据集</param> /// <param name="isShowExcle">导出后是否打开文件</param> /// <returns></returns> public static bool DataTableToExcel(string filePath, System.Data.DataTable dataTable, bool isShowExcle) { //System.Data.DataTable dataTable = dataSet.Tables[0]; int rowNumber = dataTable.Rows.Count; int columnNumber = dataTable.Columns.Count; int colIndex = 0; if (rowNumber == 0) { return false; } Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application(); 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.Range range; 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]; } } range = worksheet.get_Range(excel.Cells[2, 1], excel.Cells[rowNumber + 1, columnNumber]); range.Value2 = objData; range.NumberFormatLocal = "@"; worksheet.SaveAs(filePath, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing); //excel.Quit(); return true; }

读取Excel文件数据到DataTable

/// <summary> /// 读取Excel文件数据到DataTable /// </summary> /// <param name="filePath">Excel文件路径</param> private void Import_Excel(string filePath) { string sqlconn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filePath + ";Extended Properties='Excel 8.0;HDR=False;IMEX=1'"; string sql = @"select * from [Sheet1$]"; try { using (OleDbConnection conn = new OleDbConnection(sqlconn)) { using (OleDbDataAdapter adapter = new OleDbDataAdapter(sql, conn)) { System.Data.DataTable dt = new System.Data.DataTable(); adapter.Fill(dt); this.LoadDataGridView(dt); } } } catch (Exception ex) { MessageBox.Show("打开文件出错，错误信息：" + ex.Message.ToString(), "提示"); } }

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。