扣丁学堂Java培训简述C# Winform如何实现导入和导出Excel文件

　　本篇文章扣丁学堂Java培训小编给读者们分享一下Java开发常用的一项技能，那就是C# Winform如何实现导入和导出Excel文件，对Java开发技术感兴趣的小伙伴就随小编一起来了解一下吧。 java培训 我们在文章中会实例为大家分享Winform实现导入导出Excel文件的具体代码，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"); } } 以上就是扣丁学堂Java在线学习小编给大家分享的C# Winform实现导入和导出Excel文件，希望对小伙伴们有所帮助，想要了解更多内容的小伙伴可以登录扣丁学堂官网咨询。 想要学好Java开发小编给大家推荐口碑良好的扣丁学堂，扣丁学堂有专业老师制定的Java学习路线图辅助学员学习，此外还有与时俱进的Java视频教程供大家学习，想要学好Java开发技术的小伙伴快快行动吧。