Question

我正在使用带有asp.net MVC5的JQuery Datatable，但每次我收到错误时都说'＃34; DataTables警告：table id = {id} - 请求的未知参数＆＃39; {parameter}＆＃39;对于行{row-index}，列{column-index}`＆＃34;

以下是代码详情

查看详情如下

<p>
    <div>
        Total employees are @ViewBag.records
        <p>
            <button id="btnCall" value="Call">Call</button>
        </p>
        <table id="employeeDataTable">
            <thead>
                <tr>
                    <th>ID</th>
                    <th>FirstName</th>
                    <th>LastName</th>
                    <th>Designation</th>
                    <th>DepartmentName</th>
                    <th>Contact</th>
                    <th>EmailAddress</th>
                    <th>Location</th>
                </tr>
            </thead>
        </table>
    </div>
</p>

@section Scripts{
    <script type="text/javascript">
        $(document).ready(function ()
        { $("#employeeDataTable").dataTable({
                serverSide: true,
                ajax: {
                    url: '@Url.Action("DataTableUse", "DataTable")',
                    type: "GET",
                    datatype: "json"
                },
                "columns": [
                        { "data": "ID","autoWidth": true },
                        { "data": "FirstName", "autoWidth": true },
                        { "data": "LastName", "autoWidth": true },
                        { "data": "Designation", "autoWidth": true },
                        { "data": "DepartmentName", "autoWidth": true },
                        { "data": "Contact", "autoWidth": true },
                        { "data": "EmailAddress", "autoWidth": true },
                        { "data": "Location", "autoWidth": true },
                ]
            });

        });
    </script>
}

使用的脚本是

<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/1.10.15/css/jquery.dataTables.min.css" />
    <script type="text/javascript" src="https://cdn.datatables.net/1.10.15/js/jquery.dataTables.min.js"></script>
<script src="/Scripts/jquery-1.10.2.js"></script>

控制器代码

public ActionResult Index()
        {
            return View("DataTableUse");
        }

        public ActionResult DataTableUse()
        {
            ClsDataOperation objDO = new ClsDataOperation();
            List<Employee> lstEmployees = new List<Employee>();
            lstEmployees = objDO.GetEmployeeData();
            ViewBag.records = lstEmployees.Count;
            string strJsonResultSet = JsonConvert.SerializeObject(lstEmployees) ;
            return Json(new { data = strJsonResultSet },JsonRequestBehavior.AllowGet);
        }

模型类详细信息

public class Employee
    {
        public int ID { get; set; }
        public string  FirstName{ get; set; }
        public string LastName{ get; set; }
        public string Designation { get; set; }
        public string DepartmentName { get; set; }
        public string Contact { get; set; }
        public string EmailAddress { get; set; }
        public string Location { get; set; }
    }

相同的结构在数据库表中，数据如下JSON格式

[{"ID":1,"FirstName":"FooTest1","LastName":"Cool1","Designation":"Director","DepartmentName":"IT","Contact":"123456789","EmailAddress":"FooTest1.Cool1@test.com","Location":"NJ"},
{"ID":2,"FirstName":"FooTest2","LastName":"Cool2","Designation":"Director","DepartmentName":"IT","Contact":"123456789","EmailAddress":"FooTest2.Cool2@test.com","Location":"NJ"}]

DataOpeartion类的代码如下

public List<Employee> GetEmployeeData()
        {
            List<Employee> lstEmployees = new List<Employee>();
            try
            {
                using (var db = new DevelopmentTestDatabaseContext())
                {
                    //lstEmployees = db.EmployeeData.ToList<Employee>();
                    lstEmployees = db.EmployeeData.ToList();
                }
            }
            catch (Exception ex)
            {

            }
            return lstEmployees;            
        }

DataContext Class如下

public class DevelopmentTestDatabaseContext :DbContext
    {
        public DevelopmentTestDatabaseContext() : base("name =DevelopmentTestDatabaseContext")
        {

        }
        public virtual DbSet<Employee> EmployeeData { get; set; }
    }

每次我收到的错误都是＆＃34; DataTables警告：请求的未知参数＆＃39; 0＆＃39;来自行＆＃39; 0＆＃39;的数据源＆＃34;

请帮我解决这个问题。

Answer 1

基于this link，我认为您可能需要将dataSrc属性作为空字符串添加到ajax中。这是因为您返回的json不是具有data属性的对象，而是数组。

ajax: {
          url: '@Url.Action("DataTableUse", "DataTable")',
          type: "GET",
          datatype: "json",
          dataSrc: ""
      },

Answer 2

我能够解决这个问题，在下面的行中，我在使用JSON返回时使用字符串，因此删除了

#include "foo.h"

而不是我直接使用lstEmployees获取数据，如下所示

string strJsonResultSet = JsonConvert.SerializeObject(lstEmployees) ;
return Json(new { data = strJsonResultSet },JsonRequestBehavior.AllowGet);

然后返回时在return语句中添加了以下参数

return Json(new { data = lstEmployees },JsonRequestBehavior.AllowGet)

感谢Mark和Grant的帮助。

在asp.net MVC 5中使用数据表时出错[请求的未知参数＆＃39; {parameter}＆＃39; for row {row-index}，column {column-index}]

2 个答案: