Having trouble sending multiple records to the database using JavaScript in ASP.NET MVC? Look no further, as I have the best code that can send data to the controller. However, the file attachment is not being sent along with it.

I've tried various methods and came across FormData as one potential solution, but I'm having difficulty implementing it in this scenario.

Controller:

public ActionResult SaveAllFeedback(FEEDBACKVM[] fEEDBACKs)
        {
            try
            {
                if (fEEDBACKs != null)
                {
                    FEEDBACK fEEDBACK = new FEEDBACK();
                    foreach (var item in fEEDBACKs)
                    {
                        fEEDBACK.DATE = item.DATE;
                        fEEDBACK.COMMENT = item.COMMENT;
                        fEEDBACK.STUDENTID = item.STUDENTID;
                        fEEDBACK.TEACHERID = db.TEACHERs.Where(x => x.EMAIL == User.Identity.Name).FirstOrDefault().ID;
                        if (item.HOMEWORK != null)
                        {
                            fEEDBACK.HOMEWORK = SaveToPhysicalLocation(item.HOMEWORK);
                        }
                        db.FEEDBACKs.Add(fEEDBACK);
                    }
                    db.SaveChanges();
                    return Json("Done", JsonRequestBehavior.AllowGet);
                }
                return Json("Unable to save your feedback! Please provide correct information", JsonRequestBehavior.AllowGet);
            }
            catch (Exception)
            {
                return Json("Unable to save your feedback! Please try again later.", JsonRequestBehavior.AllowGet);
            }
        }


ViewPage:

<form>
        @Html.AntiForgeryToken()
        @Html.ValidationSummary(true, "", new { @class = "text-danger" })


        <div class="form-group">
            <input name="DATE" id="DATE" type="date" class="form-control" />
        </div>

        <table class="table table-responsive table-hover" id="table1">
            <thead>
                <tr class="bg-cyan">
                    <th></th>
                    <th>RollNumber</th>
                    <th>Comment</th>
                    <th>Homework</th>
                </tr>
            </thead>
            <tbody>
                @foreach (var item in ViewBag.students)
                {
                    <tr>
                        <td>
                            <input name="STUDENTID" type="text" value="@item.Key" hidden="hidden" />
                        </td>
                        <td>
                            <input name="STUDENTROLLNUMBER" type="text" value="@item.Value" class="form-control" readonly="readonly" />
                        </td>
                        <td>
                            <input name="COMMENT" type="text" class="form-control" />
                        </td>
                        <td>
                            <input name="HOMEWORK" type="file" class="form-control" />
                        </td>
                    </tr>
                }
            </tbody>
        </table>

        <div class="form-group">
            <div class="col-md-10">
                @Html.ValidationMessage("ErrorInfo", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            <div class="col-md-offset-2 col-md-10">
                <button id="saveButton" type="submit" class="btn btn-danger">Save Attendance</button>
            </div>
        </div>
    </form>



Script:

<script>

           //After Click Save Button Pass All Data View To Controller For Save Database
            function saveButton(data) {
                return $.ajax({
                    contentType: 'application/json; charset=utf-8',
                    dataType: 'json',
                    type: 'POST',
                    url: '@Url.Action("SaveAllFeedback", "Teacherss")',
                    data: data,
                    success: function (result) {
                        alert(result);
                        location.reload();
                    },
                    error: function () {
                        alert("Error!")
                    }
                });
            }
            //Collect Multiple Order List For Pass To Controller
            $("#saveButton").click(function (e) {
                e.preventDefault();


                var formData = new FormData();

                var arr = [];
                arr.length = 0;

                $.each($("#table1 tbody tr"), function () {
                   //arr.push({
                   //     //DATE: $("#DATE").val(),
                   //     //STUDENTID: $(this).find('td:eq(0) input').val(),
                   //     //COMMENT: $(this).find('td:eq(2) input').val(),
                   //     //HOMEWORK: $(this).find('td:eq(3) input').val()
                   // });

                    formData.append("DATE", $("#DATE").val());
                    formData.append("STUDENTID", $(this).find('td:eq(0) input').val());
                    formData.append("COMMENT", $(this).find('td:eq(2) input').val());
                    formData.append("HOMEWORK", $(this).find('td:eq(3) input')[0].files[0]);


                });

                var data = JSON.stringify({
                    fEEDBACKs: formData
                });

                $.when(saveButton (data)).then(function (response) {
                    console.log(response);
                }).fail(function (err) {
                    console.log(err);
                });
            });

        </script>

I'm determined to successfully send multiple records, including files, to the database.