我尝试在我的MCV.CORE web应用中实现ExportToPDF()动作方法。现在很明显，在我的EmployeeCategory class中，我有不同的数据类型（int，string，double）。
所以，我得出的结论是，为什么我会得到错误，是因为数据类型必须是字符串类型，这在我的例子中是不可能的。
我不知道如何正确地实现这个动作方法。
我得到的错误是：
无法转换类型Test_Project_Web.Models.EmployeeCategory to string[]
No best type found for implicitly-typed array
我的简化版code:

EmployeeCategory.cs :

public class EmployeeCategory
{
    [Key]
    public int Id { get; set; }

    [Required]
    public string? Name { get; set; }

    [Required]
    public string? LastName { get; set; }

    [Required]
    public string? Address { get; set; }

    [Required]
    public double NetSalary { get; set; }
    
    [Required]
    public double GrossSalary { get; set; }


}

EmployeeCategoryController.cs :

private ApplicationDbContext Context { get; }
 
    public EmployeeCategoryController(ApplicationDbContext _context)
    {
        Context = _context;
    }
 
    public IActionResult Index()
    {
        return View(this.Context.EmployeeCategories.Take(6).ToList());
    }

        [HttpPost]
        public FileResult ExportToPDF()
        {
            List<EmployeeCategory> employees = (from employee in Context.EmployeeCategories.Take(6)
                                                select new[] {

                                      employee.Id,
                                      employee.Name,
                                      employee.LastName,
                                      employee.Address,                                     
                                      employee.NetSalary,
                                      employee.GrossSalary
                                 }).ToList<EmployeeCategory>();

            

            //Building an HTML string.
            StringBuilder sb = new StringBuilder();

            //Table start.
            sb.Append("<table border='1' cellpadding='5' cellspacing='0' style='border: 1px solid #ccc;font-family: Arial; font-size: 10pt;'>");

            //Building the Header row.
            sb.Append("<tr>");
            sb.Append("<th style='background-color: #B8DBFD;border: 1px solid #ccc'>Id</th>");
            sb.Append("<th style='background-color: #B8DBFD;border: 1px solid #ccc'>Name</th>");
            sb.Append("<th style='background-color: #B8DBFD;border: 1px solid #ccc'>LastName</th>");
            sb.Append("<th style='background-color: #B8DBFD;border: 1px solid #ccc'>Address</th>");
            sb.Append("<th style='background-color: #B8DBFD;border: 1px solid #ccc'>NetSalary</th>");
            sb.Append("<th style='background-color: #B8DBFD;border: 1px solid #ccc'>GrossSalary</th>");
            sb.Append("</tr>");

            //Building the Data rows.
            for (int i = 0; i < employees.Count; i++)
            {
                string[] employee = (string[])employees[i];
                sb.Append("<tr>");
                for (int j = 0; j < employee.Length; j++)
                {
                    //Append data.
                    sb.Append("<td style='border: 1px solid #ccc'>");
                    sb.Append(employee[j]);
                    sb.Append("</td>");
                }
                sb.Append("</tr>");
            }


            //Table end.
            sb.Append("</table>");

            using (MemoryStream stream = new MemoryStream(Encoding.ASCII.GetBytes(sb.ToString())))
            {
                ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
                PdfWriter writer = new PdfWriter(byteArrayOutputStream);
                PdfDocument pdfDocument = new PdfDocument(writer);
                pdfDocument.SetDefaultPageSize(PageSize.A4);
                HtmlConverter.ConvertToPdf(stream, pdfDocument);
                pdfDocument.Close();
                return File(byteArrayOutputStream.ToArray(), "application/pdf", "EmployeeList.pdf");
            }
        }