C#加班统计次数
运行环境：vs2022 .net 8.0 社区版
1、用C#语言；2、有界面上传Excel文件; 3、对Excel列（部门、人员姓名、人员编号、考勤时间 ）处理：（1）按人员编号、考勤日期分组且保留原来字段，保留唯一最晚考勤时间记录，（2）按人员编号分组，统计分组员工加班次数：判断条件（1）周一至周五（2）打卡时间超过17：30 4、输出Excel在另一个sheet标签统计。
using System.Windows.Forms;
using OfficeOpenXml;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
namespace WinFormsApp1
{
public partial class Form : System.Windows.Forms.Form
{
public Form()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.Filter = "Excel Files|*.xls;*.xlsx;*.xlsm";
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
// 用户选择了一个文件
string selectedFilePath = openFileDialog.FileName;
// 在这里可以编写上传文件的逻辑，例如将文件复制到指定位置、读取文件内容等
// 这里只是简单的演示，可以根据实际需求进行扩展
//MessageBox.Show($"已选择文件：{selectedFilePath}");
txtUpload.Text = selectedFilePath;
ProcessExcelFile(selectedFilePath);
}
}
public void ProcessExcelFile(string filePath)
{
FileInfo fileInfo = new FileInfo(filePath);
ExcelPackage.LicenseContext = LicenseContext.NonCommercial;
using (ExcelPackage package = new ExcelPackage(fileInfo))
{
ExcelWorksheet worksheet = package.Workbook.Worksheets[0]; // 假设数据在第一个sheet中
int rowCount = worksheet.Dimension.Rows;
int colCount = worksheet.Dimension.Columns;
// 数据处理
List<EmployeeAttendance> attendanceList = new List<EmployeeAttendance>();
try
{
for (int row = 3; row <= rowCount; row++) // 假设第一行是标题行
{
string department = worksheet.Cells[row, 2].Value?.ToString();
string employeeName = worksheet.Cells[row, 3].Value?.ToString();
int employeeId = Convert.ToInt32(worksheet.Cells[row, 4].Value);
DateTime attendanceTime = DateTime.Parse(worksheet.Cells[row, 7].Value?.ToString());
attendanceList.Add(new EmployeeAttendance
{
Department = department,
EmployeeName = employeeName,
EmployeeId = employeeId,
AttendanceTime = attendanceTime
});
}
}
catch (Exception e)
{
MessageBox.Show("提示：Excel文件格式不对！请重新选择\n错误信息：" + e.Message);
throw e;
}
// // 使用 LINQ 查询，按照人员编号、人员姓名、部门、考勤日期分组并保留最晚考勤时间记录,条件是在周一至周五
var latestAttendanceRecords = attendanceList
.Where(a => a.AttendanceTime.DayOfWeek >= DayOfWeek.Monday && a.AttendanceTime.DayOfWeek <= DayOfWeek.Friday)
.GroupBy(a => new { a.EmployeeId,a.EmployeeName,a.Department, a.AttendanceTime.Date })
.Select(g => g.OrderByDescending(a => a.AttendanceTime).First())
.ToList();
try
{
Random random = new Random();
int randomNumber = random.Next(1000, 10000); // 生成1000到9999之间的随机整数
// 输出统计结果到另一个sheet
ExcelWorksheet resultSheet = package.Workbook.Worksheets.Add($"最晚打卡记录{randomNumber}");
// 写入标题
resultSheet.Cells[1, 1].Value = "员工编号";
resultSheet.Cells[1, 2].Value = "员工姓名";
resultSheet.Cells[1, 3].Value = "员工部门";
resultSheet.Cells[1, 4].Value = "考勤时间";
// 写入数据
int rowIndex = 2;
foreach (var kvp in latestAttendanceRecords)
{
resultSheet.Cells[rowIndex, 1].Value = kvp.EmployeeId;
resultSheet.Cells[rowIndex, 2].Value = kvp.EmployeeName;
resultSheet.Cells[rowIndex, 3].Value = kvp.Department;
resultSheet.Cells[rowIndex, 4].Value = kvp.AttendanceTime;
rowIndex++;
}
// 保存文件
package.Save();
//MessageBox.Show($"统计结果输出成功");
}
catch (Exception)
{
throw;
}
// 按照人员编号、人员姓名和部门分组，统计每个人的加班次数，并且考勤时间超过17点
var overtimeCountByEmployee = latestAttendanceRecords.Where(a =>(a.AttendanceTime.Hour == 17 && a.AttendanceTime.Minute >= 30)||(a.AttendanceTime.Hour > 17 ))
.GroupBy(a => new { a.EmployeeId, a.EmployeeName, a.Department })
.Select(g => new
{
EmployeeId = g.Key.EmployeeId,
EmployeeName = g.Key.EmployeeName,
Department = g.Key.Department,
OvertimeCount = g.Count()
})
.ToList();
try
{
Random random = new Random();
int randomNumber = random.Next(1000, 10000); // 生成1000到9999之间的随机整数
// 输出统计结果到另一个sheet
ExcelWorksheet resultSheet = package.Workbook.Worksheets.Add($"统计结果{randomNumber}");
// 写入标题
resultSheet.Cells[1, 1].Value = "员工编号";
resultSheet.Cells[1, 2].Value = "员工姓名";
resultSheet.Cells[1, 3].Value = "员工部门";
resultSheet.Cells[1, 4].Value = "加班次数";
// 写入数据
int rowIndex = 2;
foreach (var kvp in overtimeCountByEmployee)
{
resultSheet.Cells[rowIndex, 1].Value = kvp.EmployeeId;
resultSheet.Cells[rowIndex, 2].Value = kvp.EmployeeName;
resultSheet.Cells[rowIndex, 3].Value = kvp.Department;
resultSheet.Cells[rowIndex, 4].Value = kvp.OvertimeCount;
rowIndex++;
}
// 保存文件
package.Save();
MessageBox.Show($"统计结果输出成功");
this.Close();
}
catch (Exception e)
{
MessageBox.Show("提示：输出失败，该文件被打开，请关闭文件后重试！\n错误信息：" + e.Message);
throw e;
}
}
}
}
public class EmployeeAttendance
{
public string Department { get; set; }
public string EmployeeName { get; set; }
public int EmployeeId { get; set; }
public DateTime AttendanceTime { get; set; }
}
}
界面：
