c#操作数据库导出Excel表
2021/7/28 19:37:56
本文主要是介绍c#操作数据库导出Excel表,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
首先:添加GET包:
Microsoft.Office.Interop.Excel;
其次:添加命名空间:
1、using Netover.Foundation.Common; 2、using Netover.Foundation.Web; 3、using NPOI.HSSF.UserModel;
之后:读取数据库中导出的表(这里用的是莱姆达表达式)
IQueryable<PlanInfo> query = db.PlanInfo.Where(a => a.Isdeleted == 0); if (!string.IsNullOrEmpty(Request["txtUserName"])) //筛选条件 { query = query.Where(a => a.Title.Contains(Request["txtUserName"]) ); } if (!string.IsNullOrEmpty(Request["hidden"]))//筛选条件
{ query = query.Where(a => a.Dept.ToString().Contains(Request["hidden"])); } Export(query);
之后:读取Excel模板(模板附带表头)
private void Export(IQueryable<PlanInfo> query) { string path = Server.MapPath("~/Content/Templet/") + "计划审批模板.xls"; HSSFWorkbook workbook; using (FileStream file = new FileStream(path, FileMode.Open, FileAccess.Read)) { workbook = new HSSFWorkbook(file); } HSSFSheet sheet = (HSSFSheet)workbook.GetSheetAt(0); for (int i = 1; i < (query.Count() + 1); i++) { HSSFRow row = (HSSFRow)sheet.GetRow(i); //将空白行复制到下一行 row.CopyRowTo(i + 1); var item = query.OrderBy(a => a.Number).Skip(i - 1).FirstOrDefault(); #region 设置单元格的值 HSSFCell cell1 = (HSSFCell)row.GetCell(0); cell1.SetCellValue(i); HSSFCell cell2 = (HSSFCell)row.GetCell(1); cell2.SetCellValue(item.Title); HSSFCell cell3 = (HSSFCell)row.GetCell(2); cell3.SetCellValue(item.ActiTypeName); HSSFCell cell4 = (HSSFCell)row.GetCell(3); cell4.SetCellValue(ConvertHelper.ConvertToString(item.BeginTime)); HSSFCell cell5 = (HSSFCell)row.GetCell(4); cell5.SetCellValue(ConvertHelper.ConvertToString(item.EndTime)); HSSFCell cell6 = (HSSFCell)row.GetCell(5); cell6.SetCellValue(ConvertHelper.ConvertToString(item.SiteName)); HSSFCell cell7 = (HSSFCell)row.GetCell(6); cell7.SetCellValue(ConvertHelper.ConvertToString(item.stateName)); HSSFCell cell8 = (HSSFCell)row.GetCell(7); cell8.SetCellValue(ConvertHelper.ConvertToString(item.Content)); #endregion } Response.ContentEncoding = System.Text.Encoding.UTF8; string filename = HttpUtility.UrlEncode(DateTime.Now.ToString("计划审批名单")); Response.AddHeader("Content-Disposition", "attachment;filename=" + filename + ".xls"); Response.ContentType = "application/ms-excel"; workbook.Write(Response.OutputStream);
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