数据导出为Excel（未完）

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function Download()

{

//多个查询条件

dateStart = $("#j_dataTimeStart").datebox("getValue");

dateEnd = $("#j_dataTimeEnd").datebox("getValue");

name = $("#j_name").val();

sex = $('#j_sex').val();

window.location.href = "/Main/DownLoadExcel?dateStart=" + dateStart + "&dateEnd=" + dateEnd + "&name=" + name + "&sex=" + sex;

}

Controller

 #region 09-获取导出数据

 /// <summary>

 /// 09-获取导出数据

 /// </summary>

 /// <param name="student">用来接收用户信息（涵盖多条件）</param>

 /// <param name="dateStart">筛选的起始时间</param>

 /// <param name="dateEnd">筛选的结束时间</param>

 /// <returns></returns>

 public List<student> GetStudentList(student student, string dateStart, string dateEnd)

 {

 try

 {

 //1.获取数据源

 var data = db.Set<student>().Where(u => true);

 //2.过滤查询

 //2.1对学生姓名进行查询

 if (!String.IsNullOrEmpty(student.name))

 {

 data = data.Where(u => u.name.Contains(student.name));

 }

 //2.2对学生性别进行查询

 if (!String.IsNullOrEmpty(student.sex))

 {

 data = data.Where(u => u.sex == student.sex);

 }

 //2.3对学生年龄进行查询

 if (!String.IsNullOrEmpty(student.age))

 {

 data = data.Where(u => u.age.Contains(student.age));

 }

 //2.4对学生记录时间段进行查询

 if ((!String.IsNullOrEmpty(dateStart)) && (!String.IsNullOrEmpty(dateEnd)))

 {

 DateTime dateS = Convert.ToDateTime(dateStart);//开始时间

 DateTime dateE = Convert.ToDateTime(dateEnd);//结束时间

 data = data.Where(u => u.dataTime >= dateS && u.dataTime <= dateE);

 }

 //3.返回结果数据

 var list = data.OrderByDescending(u => u.dataTime).ToList();

 return list;

 }

 catch (Exception ex)

 {

 FileOperateHelp.WriteFile("E:/ErrorLog333.txt", ex.Message);

 }

 return new List<student>();

 }

 #endregion

 #region 10-导出学生信息方法

 public void ExportStudentExcel(List<student> studentList, out string pathFileName)

 {

 #region 创建存放Excel的文件夹、文件

 //创建存放Excel的文件夹

 string path = Server.MapPath("~/Upload/Excel/BackFee/");

 string fileName = DateTime.Now.ToString("yyyyMMddHHmmssffffff") + ".xlsx";

 pathFileName = path + fileName;

 //如果上传目录不存在就创建

 if (!Directory.Exists(path))

 {

 Directory.CreateDirectory(path);

 }

 FileInfo newFile = new FileInfo(pathFileName);

 if (newFile.Exists)

 {

 newFile.Delete();

 newFile = new FileInfo(pathFileName);

 }

 #endregion

 //创建工作簿和工作表

 using (ExcelPackage package = new ExcelPackage(newFile))

 {

 ExcelWorksheet workSheet = package.Workbook.Worksheets.Add("sheet1");

 #region 添加表头

 /*添加表头*/

 workSheet.InsertRow(, );

 using (var range = workSheet.Cells[, , , ])

 {

 range.Merge = true;//合并单元格

 range.Style.Font.SetFromFont(new Font("Britannic Bold", , FontStyle.Regular));//为字体设置样式

 range.Style.HorizontalAlignment = ExcelHorizontalAlignment.CenterContinuous;//水平居中

 range.Style.Fill.PatternType = ExcelFillStyle.Solid;

 range.Style.Fill.BackgroundColor.SetColor(Color.FromArgb(, , ));//设置背景色

 range.Style.Font.Color.SetColor(Color.Black);//字体颜色

 range.Value = "学生信息统计表";

 }

 #endregion

 #region 设置列宽

 //设置列宽

 workSheet.Column().Width = ;

 workSheet.Column().Width = ;

 workSheet.Column().Width = ;

 workSheet.Column().Width = ;

 workSheet.Column().Width = ;

 workSheet.Column().Width = ;

 workSheet.Column().Width = ;

 workSheet.Column().Width = ;

 #endregion

 #region 设置标题

 /*设置标题*/

 workSheet.Cells[, ].Value = "学生姓名";

 workSheet.Cells[, ].Value = "性别";

 workSheet.Cells[, ].Value = "年龄";

 workSheet.Cells[, ].Value = "自我介绍";

 workSheet.Cells[, ].Value = "填写时间";

 #endregion

 using (var range = workSheet.Cells[, , , ])

 {

 range.Style.Font.Bold = true;//设置字体为粗体

 range.Style.Fill.PatternType = ExcelFillStyle.Solid;

 range.Style.Fill.BackgroundColor.SetColor(Color.DarkBlue);//设置背景颜色

 range.Style.Font.Color.SetColor(Color.White);//设置字体颜色

 //range.AutoFilter = true;

 }

 #region 设置单元格内容

 /*设置单元格内容*/

 int row = ;

 foreach (student item in studentList)

 {

 workSheet.Cells[row, ].Value = item.name;

 workSheet.Cells[row, ].Value = item.sex;

 workSheet.Cells[row, ].Value = item.age;

 workSheet.Cells[row, ].Value = item.content;

 workSheet.Cells[row, ].Value = item.dataTime.ToString();

 workSheet.Cells[row, ].Style.Numberformat.Format = "yyyy-MM-dd";

 workSheet.Cells[row, , row, ].Style.WrapText = true;//自动换行

 row++;

 }

 #endregion

 workSheet.Cells.Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;//水平居中

 //workSheet.Cells.Style.VerticalAlignment = ExcelVerticalAlignment.Center;//垂直居中

 package.Save();

 }

 }

 #endregion

  #region 08-导出学生信息

         /// <summary>

         ///08-导出学生信息

         /// 【下载到本地】

         /// </summary>

         /// <param name="student">用来接收用户信息（涵盖多条件）</param>

         /// <param name="dateStart">筛选的起始时间</param>

         /// <param name="dateEnd">筛选的结束时间</param>

         /// <returns></returns>

         public FileResult DownLoadExcel(student student, string dateStart, string dateEnd)

         {

             List<student> studentList = GetStudentList(student, dateStart, dateEnd);

             string pathFileName = string.Empty;

             ExportStudentExcel(studentList, out pathFileName);

             string fileName = DateTime.Now.ToString("yyyyMMddHHmmssffffff") + ".xlsx";

             return File(pathFileName, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", fileName);

         }

         #endregion

导出学生信息

 #region 09-获取导出数据

         /// <summary>

         /// 09-获取导出数据

         /// </summary>

         /// <param name="student">用来接收用户信息（涵盖多条件）</param>

         /// <param name="dateStart">筛选的起始时间</param>

         /// <param name="dateEnd">筛选的结束时间</param>

         /// <returns></returns>

         public List<student> GetStudentList(student student, string dateStart, string dateEnd)

         {

             try

             {

                 //1.获取数据源

                 var data = db.Set<student>().Where(u => true);

                 //2.过滤查询

                 //2.1对学生姓名进行查询

                 if (!String.IsNullOrEmpty(student.name))

                 {

                     data = data.Where(u => u.name.Contains(student.name));

                 }

                 //2.2对学生性别进行查询

                 if (!String.IsNullOrEmpty(student.sex))

                 {

                     data = data.Where(u => u.sex == student.sex);

                 }

                 //2.3对学生年龄进行查询

                 if (!String.IsNullOrEmpty(student.age))

                 {

                     data = data.Where(u => u.age.Contains(student.age));

                 }

                 //2.4对学生记录时间段进行查询

                 if ((!String.IsNullOrEmpty(dateStart)) && (!String.IsNullOrEmpty(dateEnd)))

                 {

                     DateTime dateS = Convert.ToDateTime(dateStart);//开始时间

                     DateTime dateE = Convert.ToDateTime(dateEnd);//结束时间

                     data = data.Where(u => u.dataTime >= dateS && u.dataTime <= dateE);

                 }

                 //3.返回结果数据

                 var list = data.OrderByDescending(u => u.dataTime).ToList();

                 return list;

             }

             catch (Exception ex)

             {

                 FileOperateHelp.WriteFile("E:/ErrorLog333.txt", ex.Message);

             }

             return new List<student>();

         }

         #endregion

获取导出数据

 #region 10-导出学生信息方法

         public void ExportStudentExcel(List<student> studentList, out string pathFileName)

         {

             #region 创建存放Excel的文件夹、文件

             //创建存放Excel的文件夹

             string path = Server.MapPath("~/Upload/Excel/BackFee/");

             string fileName = DateTime.Now.ToString("yyyyMMddHHmmssffffff") + ".xlsx";

             pathFileName = path + fileName;

             //如果上传目录不存在就创建

             if (!Directory.Exists(path))

             {

                 Directory.CreateDirectory(path);

             }

             FileInfo newFile = new FileInfo(pathFileName);

             if (newFile.Exists)

             {

                 newFile.Delete();

                 newFile = new FileInfo(pathFileName);

             }

             #endregion

             //创建工作簿和工作表

             using (ExcelPackage package = new ExcelPackage(newFile))

             {

                 ExcelWorksheet workSheet = package.Workbook.Worksheets.Add("sheet1");

                 #region 添加表头

                 /*添加表头*/

                 workSheet.InsertRow(, );

                 using (var range = workSheet.Cells[, , , ])

                 {

                     range.Merge = true;//合并单元格

                     range.Style.Font.SetFromFont(new Font("Britannic Bold", , FontStyle.Regular));//为字体设置样式

                     range.Style.HorizontalAlignment = ExcelHorizontalAlignment.CenterContinuous;//水平居中

                     range.Style.Fill.PatternType = ExcelFillStyle.Solid;

                     range.Style.Fill.BackgroundColor.SetColor(Color.FromArgb(, , ));//设置背景色

                     range.Style.Font.Color.SetColor(Color.Black);//字体颜色

                     range.Value = "学生信息统计表";

                 }

                 #endregion

                 #region 设置列宽

                 //设置列宽

                 workSheet.Column().Width = ;

                 workSheet.Column().Width = ;

                 workSheet.Column().Width = ;

                 workSheet.Column().Width = ;

                 workSheet.Column().Width = ;

                 workSheet.Column().Width = ;

                 workSheet.Column().Width = ;

                 workSheet.Column().Width = ;

                 #endregion

                 #region 设置标题

                 /*设置标题*/

                 workSheet.Cells[, ].Value = "学生姓名";

                 workSheet.Cells[, ].Value = "性别";

                 workSheet.Cells[, ].Value = "年龄";

                 workSheet.Cells[, ].Value = "自我介绍";

                 workSheet.Cells[, ].Value = "填写时间";

                 #endregion

                 using (var range = workSheet.Cells[, , , ])

                 {

                     range.Style.Font.Bold = true;//设置字体为粗体

                     range.Style.Fill.PatternType = ExcelFillStyle.Solid;

                     range.Style.Fill.BackgroundColor.SetColor(Color.DarkBlue);//设置背景颜色

                     range.Style.Font.Color.SetColor(Color.White);//设置字体颜色

                     //range.AutoFilter = true;

                 }

                 #region 设置单元格内容

                 /*设置单元格内容*/

                 int row = ;

                 foreach (student item in studentList)

                 {

                     workSheet.Cells[row, ].Value = item.name;

                     workSheet.Cells[row, ].Value = item.sex;

                     workSheet.Cells[row, ].Value = item.age;

                     workSheet.Cells[row, ].Value = item.content;

                     workSheet.Cells[row, ].Value = item.dataTime.ToString();

                     workSheet.Cells[row, ].Style.Numberformat.Format = "yyyy-MM-dd";

                     workSheet.Cells[row, , row, ].Style.WrapText = true;//自动换行

                     row++;

                 }

                 #endregion

                 workSheet.Cells.Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;//水平居中

                 //workSheet.Cells.Style.VerticalAlignment = ExcelVerticalAlignment.Center;//垂直居中

                 package.Save();

             }

         }

         #endregion

导出学生信息方法

<下拉框>

ExcelRange range = worksheet.Cells[idxRow, idxCell];
string strData = "北京,上海,广州";
string[] Data = strData.Split(',');
var val = worksheet.DataValidations.AddListValidation(range.Address);
for (int idxV = 0; idxV < Data.Length; idxV++)
{
val.Formula.Values.Add(Data[idxV]);
}

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数据导出为Excel（未完）

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