How to keep mvc razor parent page field contents after submitting button on a partial view

Question

Hi All,

I have a application that uses both a drag and drop file upload option and a Browse and select file option.
I put these option all on one razor page.

I do this so that I can get information from the user that I can use to tag the file names and email the conformations,
Both options work,

The Drag and drop uploads the files and prints a submit message showing success.

The browse and select works but it clears the fields and resets the page values.
Also it does not update the view bag with the success message.

I am at my wits end with it that's for sure.

I will post screen shots and source codes:

The Blue and Black marked areas are Partial Views that get displayed when the Green Button under the contact information is clicked.
The problem is when the Blue Uploaded Selected Files is clicked the values in the fields highlighted in yellow get cleared out.
No matter what I try I can not seem to be able to preserve those field values.

They are part of a viewmodel.

Here is the controller:

using DOT.ViewModels;  
using System;  
using System.Collections.Generic;  
using System.IO;  
using System.Linq;  
using System.Net;  
using System.Web;  
using System.Web.Mvc;  
  
namespace DOT.Controllers  
{  
  
  
    public class LHRController : Controller  
    {  
        //See: https://stackoverflow.com/questions/5939353/how-do-you-keep-the-value-of-global-variables-between-different-action-methods-c  
        private static string GV_FNAME = "";  
        private static string GV_LName = "";  
        private static string GV_Email = "";  
   
  
        // GET: LHR  
        [HttpGet]  
        public ActionResult LHR()  
        {  
                                                           
            return View();  
        }  
  
  
  
  
        public ActionResult ApplicationUpload( string Style = "display: none")  
        {  
            //VM_LHR_ApplicationClass vm_LHR_ApplicationClass = new VM_LHR_ApplicationClass();  
            //vm_LHR_ApplicationClass.CONTACT_FIRST_NAME = GV_LName;  
            //vm_LHR_ApplicationClass.CONTACT_FIRST_NAME = GV_LName;  
            //vm_LHR_ApplicationClass.CONTACT_EMAIL = GV_Email;  
  
            ViewBag.DDAreaPartialStyle = Style;  
                                                    
            return View();  
        }  
  
  
  
        [HttpPost]  
        [ValidateAntiForgeryToken]  
        public ActionResult ApplicationUpload([Bind(Include = "CONTACT_FIRST_NAME,CONTACT_LAST_NAME,CONTACT_EMAIL")] VM_LHR_ApplicationClass vm_LHR_ApplicationClass)  
        {  
            try  
            {  
  
  
                if (ModelState.IsValid)  
                {  
                    //See The DD_Are Visibility  
                    string Style = "display: block";  
  
                    //Set Vars  
  
  
  
                GV_FNAME = vm_LHR_ApplicationClass.CONTACT_FIRST_NAME.ToString();  
                GV_LName = vm_LHR_ApplicationClass.CONTACT_LAST_NAME;  
                GV_Email = vm_LHR_ApplicationClass.CONTACT_EMAIL;  
  
  
  
  
                    //See: https://stackoverflow.com/questions/39725099/how-to-show-your-hidden-partial-view-programmatically-in-mvc  
                    ViewBag.DDAreaPartialStyle = Style;  
  
                    return View();  
  
                }  
  
                else  
                {  
  
  
                    string Style = "display: none";  
  
                    var Errors = ModelState.Select(x => x.Value.Errors)  
                     .Where(y => y.Count > 0)  
                     .ToList();  
  
                    TempData["ContactValidationErrors"] = Errors.Count;  
                    ViewBag.DDAreaPartialStyle = Style;  
  
                    return View();  
  
                }  
  
  
            }  
            catch (Exception e)  
            {  
  
                return PartialView("Error");  
            }  
  
            //return View();  
        }  
  
  
  
        //[HttpGet]  
        //    public ActionResult SingleFileUpload()  
        //    {  
        //        string Style = "display: block";  
        //        ViewBag.DDAreaPartialStyle = Style;  
  
        //        return RedirectToAction("ApplicationUpload");  
        //    }  
  
        [HttpPost]  
        public ActionResult SingleFileUpload(HttpPostedFileBase file)  
        {  
            try  
            {  
  
                var EmailResponder = new ApplicationClasses.EmailResponderClass();  
  
                //MakeUploadDate No Spaces:  
                string UploadDate = DateTime.Today.ToString("MM/dd/yy");  
                UploadDate = UploadDate.Replace("/", string.Empty);  
  
                //MakeUniqueTicker See: https://stackoverflow.com/questions/9278909/net-short-unique-identifier  
                var ticks = new DateTime(DateTime.Today.Year, DateTime.Today.Month, DateTime.Today.Day).Ticks.ToString();  
                //var ans = DateTime.Now.Ticks - ticks;  
                //var UniqueId = ans.ToString("x").Remove(4,4);  
  
  
  
                string FileNamePrefix = UploadDate + "__" + LHRController.GV_LName + LHRController.GV_FNAME + "__" + Guid.NewGuid().ToString().Remove(5, 10);// ticks.Remove(5, 11);  
  
                VM_LHR_ApplicationClass vm_LHR_ApplicationClass = new VM_LHR_ApplicationClass();  
                vm_LHR_ApplicationClass.CONTACT_FIRST_NAME = GV_LName;  
                vm_LHR_ApplicationClass.CONTACT_FIRST_NAME = GV_LName;  
                vm_LHR_ApplicationClass.CONTACT_EMAIL = GV_Email;  
  
  
                if (file.ContentLength > 0)  
                {  
                    string _FileName = FileNamePrefix + Path.GetFileName(file.FileName);  
                    string _path = Path.Combine(Server.MapPath("~/Documents/LEAD/DOCS_IN"), _FileName);  
                    file.SaveAs(_path);  
                }  
               // TempData["UploadStatus"] = "File(s) Uploaded Successfully!!";  
  
                string Style = "display: block";  
                ViewBag.DDAreaPartialStyle = Style;  
  
                //Email  
                EmailResponder.Email_Response(1, GV_Email, "AppDev@xxxx", "Document Submission Confirmation", "Thank You For Your Submission " + GV_FNAME + " " + GV_LName, ViewBag.UploadStatus);  
  
                ViewData["UploadStatus"] = "File(s) Submitted";  
  
                //return PartialView("_SFU");  
  
  
  
                return RedirectToRoute ("ApplicationUpload",vm_LHR_ApplicationClass);  
  
  
            }  
            catch(Exception e)  
            {  
  
  
                VM_LHR_ApplicationClass vm_LHR_ApplicationClass = new VM_LHR_ApplicationClass();  
                vm_LHR_ApplicationClass.CONTACT_FIRST_NAME = GV_LName;  
                vm_LHR_ApplicationClass.CONTACT_FIRST_NAME = GV_LName;  
                vm_LHR_ApplicationClass.CONTACT_EMAIL = GV_Email;  
  
                TempData["UploadStatus"] = "File upload failed!!";  
  
                string Style = "display: block";  
                ViewBag.DDAreaPartialStyle = Style;  
                return View("ApplicationUpload", vm_LHR_ApplicationClass);  
                //return PartialView("_SFU");  
  
  
            }  
        }  
  
  
        //TODO: SEE https://stackoverflow.com/questions/38501116/how-can-i-refresh-just-a-partial-view-in-its-view  
  
  
  
        [HttpPost]  
        public ActionResult Upload_DD_Files(IEnumerable<HttpPostedFileBase> FileData)  
        {  
  
  
            var EmailResponder = new ApplicationClasses.EmailResponderClass();  
  
            //MakeUploadDate No Spaces:  
            string UploadDate = DateTime.Today.ToString("MM/dd/yy");  
            UploadDate = UploadDate.Replace("/", string.Empty);  
  
  
            foreach (var file in FileData)  
            {  
  
                //MakeUniqueTicker See: https://stackoverflow.com/questions/9278909/net-short-unique-identifier  
                var ticks = new DateTime(DateTime.Today.Year, DateTime.Today.Month, DateTime.Today.Day).Ticks.ToString();  
                //var ans = DateTime.Now.Ticks - ticks;  
                //var UniqueId = ans.ToString("x").Remove(4,4);  
  
  
  
                string FileNamePrefix = UploadDate + "__" + LHRController.GV_LName + LHRController.GV_FNAME + "__" + Guid.NewGuid().ToString().Remove(5, 10);// ticks.Remove(5, 11);  
  
  
                //string filepath = Guid.NewGuid() + System.IO.Path.GetExtension(file.FileName);  
                string filepath = FileNamePrefix + System.IO.Path.GetExtension(file.FileName);  
                file.SaveAs(Path.Combine(Server.MapPath("~/Documents/LEAD/DOCS_IN"), filepath));  
  
                //There is where code to save to DB would Do  
  
            }  
  
  
            //Try To Display Results  
            string Style = "display: block";  
            ViewBag.SFSAreaPartialStyle = Style;  
            ViewBag.UploadStatus = "Selected File(s) Uploaded Successfully";  
  
  
            //Email  
            EmailResponder.Email_Response(1, GV_Email, "AppDev@xxxx", "Document Submission Confirmation", "Thank You For Your Submission " + GV_FNAME + " " + GV_LName, Convert.ToString(FileData.Count() + " " + ViewBag.UploadStatus));  
  
  
            return View("ApplicationUpload");  
            //return Json("File{s) Uploaded Successfully");  
  
        }  
  
  
  
        //public ActionResult Upload_DD_Files(IEnumerable<HttpPostedFileBase> FileData, string Info)  
        //{  
  
        //    //MakeUploadDate No Spaces:  
        //    string UploadDate = DateTime.Today.ToString("MM/dd/yy");  
        //    UploadDate = UploadDate.Replace("/", string.Empty);  
  
  
        //    foreach (var file in FileData)  
        //    {  
  
        //        //MakeUniqueTicker See: https://stackoverflow.com/questions/9278909/net-short-unique-identifier  
        //        var ticks = new DateTime(DateTime.Today.Year, DateTime.Today.Month, DateTime.Today.Day).Ticks.ToString();  
        //        //var ans = DateTime.Now.Ticks - ticks;  
        //        //var UniqueId = ans.ToString("x").Remove(4,4);  
  
  
  
        //        string FileNamePrefix = UploadDate + "__" + LHRController.GV_LName + LHRController.GV_FNAME + "__" + Guid.NewGuid().ToString().Remove(5, 10);// ticks.Remove(5, 11);  
  
  
        //        //string filepath = Guid.NewGuid() + System.IO.Path.GetExtension(file.FileName);  
        //        string filepath = FileNamePrefix + System.IO.Path.GetExtension(file.FileName);  
        //        file.SaveAs(Path.Combine(Server.MapPath("~/Documents/LEAD/DOCS_IN"), filepath));  
  
        //        //There is where code to save to DB would Do  
  
        //    }  
  
  
        //    ViewBag.UploadStatus = "Selected File(s) Uploaded Successfully";  
  
        //    return View();  
  
        //}  
  
  
  
        //Show UPLOAD Sections  
        [ChildActionOnly]  
        public ActionResult DisplayDragAndDropArea()  
        {  
            return PartialView("_DUL");  
  
        }  
  
        [ChildActionOnly]  
        public ActionResult DisplaySelectedFilesArea()  
        {  
            return PartialView("_SFU");  
        }  
  
  
        //FILE TO DOWNLOAD  
        //SEE: https://www.codeproject.com/Tips/1028915/How-To-Download-a-File-in-MVC-2  
        public ActionResult DownloadFile()  
        {  
            string path = AppDomain.CurrentDomain.BaseDirectory + "Documents/LEAD/DOCS/";  
            byte[] fileBytes = System.IO.File.ReadAllBytes(path + "LHR_Application.PDF");  
            string fileName = "LHR_Application.PDF";  
            return File(fileBytes, System.Net.Mime.MediaTypeNames.Application.Octet, fileName);  
        }  
    }  
}  

Here is the PARENT view:

@model DOT.ViewModels.VM_LHR_ApplicationClass  
  
@Html.AntiForgeryToken()  
  
<style>  
  
    ul.no-bullets {  
        list-style-type: none; /* Remove bullets */  
        padding: 0; /* Remove padding */  
        margin: 0; /* Remove margins */  
    }  
</style>  
  
  
@{  
    ViewBag.Title = "ApplicationUpload";  
}  
  
<br />  
  
<div class="col-sm-6">  
    <div>  
  
        <br />  
        <br>  
  
        <p>  
            <b>  
                Please fill out the Contact Information below. Please insure that the information is correct and complete.  
                This information will be used only for the purpose of linking the uploaded Application with the Support Documentation.<br />  
  
            </b>  
        </p>  
  
        <h3 class="glyphicon glyphicon-alert"></h3>  
        <p>  
            <b>Please Note:</b>  
            If returning to upload addtional documents to a claim, please insure that the contact information entered is correct and is the same as the initial upload.  
  
        </p>  
  
  
    </div>  
  
    @using (Html.BeginForm())  
    {  
        @Html.AntiForgeryToken()  
  
        <form id="ContactInfoForm" action="/LHR/ApplicationUpload" method="Post">  
  
  
            <div class="col-sm-12">  
  
                <div class="row">  
                    <div class="col-sm-12">  
            
                    </div>  
                </div>  
                <div class="col-sm-6">  
  
  
                    <div class="row">  
  
                        <div class="row text-left col-lg-offset-1">  
                            <label>Contact Information (Required)</label>  
                        </div>  
  
                        <div class="col-sm-6">  
                            @Html.Editor("CONTACT_FIRST_NAME", new { htmlAttributes = new { @class = "form-control form-control-sm", placeholder = "*First Name", @style = "font-size:12px; width:125px;" } })     @*, @style = " width: 160px;"*@  
                            @Html.ValidationMessage("CONTACT_FIRST_NAME", "", new { @class = "text-danger" })  
  
                        </div>  
  
                        <div class="col-sm-6">  
                            @Html.Editor("CONTACT_LAST_NAME", new { htmlAttributes = new { @class = "form-control form-control-sm", placeholder = "*Last Name", @style = "font-size:12px; width:125px;" } })  
                            @Html.ValidationMessage("CONTACT_LAST_NAME", "", new { @class = "text-danger" })  
                        </div>  
  
                    </div> @* END ROW 1*@  
  
                        <div class="row" style="margin-top:5px">  
                            <div class="col-sm-12">  
                                @Html.Editor("CONTACT_EMAIL", new { htmlAttributes = new { @class = "form-control form-control-sm", placeholder = "*Email Address", @style = "font-size:12px; width:255px;" } })  
                                @Html.ValidationMessage("CONTACT_EMAIL", "", new { @class = "text-danger" })  
  
                                <br />  
                                @*<p>  
                      If an Email Address is provide, an email comformation that the application was sent and recieved will be sent.  
                    </p>*@  
  
                            </div>  
                        </div>  
  
                        <div>  
                            @*<button type="button" id="btn_DD_Upload" value="Click Here Send Documents" onclick="Display_DD_Area()">Confirm</button>*@  
                            @*onclick="Display_DD_Area()*@  
  
  
                            <input type="submit" id="btn_DD_Upload" value="Click Here Send Documents" class="btn btn-success" ) /> @*onclick="Display_DD_Area()"   onclick="Display_DD_Area('@TempData["ContactValidationErrors"]' *@  
  
                        </div>  
  
                    </div>  
                </div>  
  
        </form>  
    }  
  
  
    <br />  
  
  
  
    <div class="col-sm-12" style="@ViewBag.DDAreaPartialStyle" id="UploadInstrNotes">  
        <div class="row">  
  
  
  
  
            @*<div>  
                    <h2>Single File Upload</h2>  
                    @using (Html.BeginForm("SingleFileUpload", "LHR", FormMethod.Post, new { enctype = "multipart/form-data" }))  
                    {  
                        <div>  
                            @Html.TextBox("file", "", new { type = "file" }) <br />  
                            <input type="submit" value="Upload" />  
                            @ViewBag.Message  
                        </div>  
                    }  
  
                </div>*@  
  
  
  
  
            <h3 class="glyphicon glyphicon-education"></h3>  
            <p>  
                <b>How To Instructions</b>  
                Please use either the Browse Selected File or the Drag and Drop file upload option to upload your documents to .<br />  
                Both options allow you to send one or multiple files at a time.<br />  
                  
             </p>     
              
              
            <h3 class="glyphicon glyphicon-alert"></h3>  
            <p>  
                <b>Please Note:</b>  
                It is important before uploading documents that the contact information above is correct and complete.<br /><br />  
      
            </p>  
  
  
            <p>  
                <b>Acceptable File Types are the following:</b>  
            </p>  
  
            <ul class="no-bullets">  
                <li> <span class="glyphicon glyphicon-file">.PDF</li>  
                <li><span class="glyphicon glyphicon-file">.TXT</li>  
                <li><span class="glyphicon glyphicon-file">.JPEG</li>  
                <li><span class="glyphicon glyphicon-file">.JPG</li>  
                <li><span class="glyphicon glyphicon-file">.DOC</li>  
                <li><span class="glyphicon glyphicon-file">.DOCX</li>  
                <li><span class="glyphicon glyphicon-file">.XLS</li>  
                <li><span class="glyphicon glyphicon-file">.XLSX</li>  
  
  
            </ul>  
  
        </div>  
  
  
    </div>  
  
  
</div>  
  
<br />  
  
  
  
  
  
  
  
<div class="col-sm-6">  
    <div class="row">  
        <div class="col-sm-12">  
  
            @*DRAG AND DROP UPLOAD AREA|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*@  
            <div class="form-horizontal" style="@ViewBag.DDAreaPartialStyle" id="DD_Area">  
  
                @{ Html.RenderAction("DisplayDragAndDropArea");}  
  
  
            </div>  
            @*||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*@  
  
        </div>  
  
    </div>  
  
  
    <div class="row">  
        <div class="col-sm-12">  
  
            @*DRAG AND DROP UPLOAD AREA|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*@  
            <div class="form-horizontal" style="@ViewBag.DDAreaPartialStyle" id="SFU_Area">  
  
                @{ Html.RenderAction("DisplaySelectedFilesArea");}  
  
  
            </div>  
            @*||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*@  
  
        </div>  
  
        <div class="col-sm-12">  
            <div class="form-horizontal" style="display:block" id="SelectedFilesStatus">  
  
                <div class="form-group">  
  
                    <div class="col-md-offset-2 col-md-10 text-success">  
                        @TempData["UploadStatus"]  
                    </div>  
  
                </div>  
  
            </div>  
        </div>  
  
        </div>  
  
    </div>  
  
  
  
  
  
  
  
  
  
  
  
@section Scripts  
{  
  
  
    @*SEE: https://www.youtube.com/watch?v=TYmR59zwwe0*@  
    @*Issues: https://github.com/weixiyen/jquery-filedrop/issues/185*@  
  
    @*<script type="text/javascript" src='https://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.3.1.min.js'></script>*@  
    @*<script type="text/javascript" src='https://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.8.3.min.js'></script>*@  
  
  
    <script src="https://code.jquery.com/jquery-migrate-3.0.1.js"></script>  
    <script src="~/Scripts/jquery.filedrop.js"></script>  
    <script src="~/Scripts/jquery.unobtrusive-ajax.js"></script>  
  
  
    <script>  
  
        //Get Validation Error Count To control Display  
        //See: https://stackoverflow.com/questions/10008023/how-do-i-access-viewbag-from-js  
  
        @*var ContactValidationErrors = '@ViewBag.ContactValidationErrors'  
        var CVE = parseInt(ContactValidationErrors)+1*@  
    </script>  
  
  
  
  
  
  
  
    <script type="text/javascript">  
  
  
        $(document).ready(function () {  
            $("#btn_DD_Upload").click(function ()  
            {  
                //alert("Test");  
  
  
                debugger;  
  
                var FName = document.getElementById("CONTACT_FIRST_NAME").value;  
                //alert(FName);  
  
                var LName = document.getElementById("CONTACT_LAST_NAME").value;  
                //alert(LName);  
  
                var Email = document.getElementById("CONTACT_EMAIL").value;  
                //alert(Email);  
  
                if (FName ==""|| LName == "" || Email == "")  
                {  
                    DisplayDDAreaOff();  
                }  
                else  
                {  
  
                    DisplayDDAreaOn();  
                }  
            })  
  
        });  
  
  
  
  
  
  
  
  
  
        function DisplayDDAreaOn() {  
            $('#DD_Area').show();  
        }  
  
        function DisplayDDAreaOff() {  
            $('#DD_Area').hide();  
        }  
  
  
  
        @*var url = '@Url.Action("DisplayDragDropArea")';  
  
        debugger;  
        $('ContactInfoForm').submit(function () {  
            if (!$(this).valid()) { return false; }*@  
  
  
  
  
        function Display_DD_Area(ContactValidationErrors)  
        {  
  
            //alert(ContactValidationErrors)  
            debugger;  
            //var CVE = 0;  
            //var Valid = false;  
  
  
            //alert(parseInt(ContactValidationErrors,10));  
  
            var CVE = parseInt(ContactValidationErrors,10);  
  
  
            if (isNaN(CVE))  
            {  
                Valid = true;  
            }  
            else  
            {  
                Valid = false;  
            }  
  
            //alert(CVE);  
            //alert(Valid);  
  
  
            //alert("I Have Been Clicked Dr. Shagwell, Im Outside The Partial Sir.");  
  
            if (!isNaN(CVE))  
            {  
                $('#DD_Area').hide();  
                $('#DD').hide();  
  
                $('#UploadInstrNotes').hide();  
                //$('#DD').load('/shared/_DUL');  
  
  
            }  
            else if (isNaN(CVE) && Valid == true)  
            {  
                $('#DD_Area').show();  
                $('#DD').show();  
  
                $('#UploadInstrNotes').show();  
                //$('#DD').load('/shared/_DUL');  
  
            }  
  
            ContactValidationErrors = "";  
  
        }  
  
  
        function Open_DD_Area_Page() {  
  
  
        }  
  
    </script>  
  
  
  
  
    <script type="text/javascript">  
        $(function ()  
        {  
            $('#DropArea').filedrop  
                ({  
  
                    url: '@Url.Action("Upload_DD_Files")',  
                    allowedfiletypes: ['image/jpeg', 'image/png', 'image/gif', 'application/pdf', 'application/doc', 'application/xls', 'application/dtxt'],  
                    allowedfileextensions: ['.doc', '.docx', '.pdf', '.jpg', '.jpeg', '.png', '.gif', '.xls', '.xlsx','txt'],  
                    paramname: 'FileData',  
                    maxfiles: 10,  
                    maxfilesize: 100, //MegaBytes  
                    queuefiles: 2,  
  
                    dragOver: function ()  
                    {  
  
                        $('#DropArea').addClass('active-drop');  
  
                    },  
  
                    dragLeave: function ()  
                    {  
  
                        $('#DropArea').removeClass('active-drop');  
                    },  
  
                    drop: function ()  
                    {  
                        $('#DropArea').removeClass('active-drop');  
                    },  
  
                    uploadFinished: function (i, file, response, time)  
                    {  
                        $('#UploadList').append('<ol> <span class="glyphicon glyphicon-save"> ' + file.name + '</ol>')  
                    },  
  
                    afterAll: function (e)  
                    {  
                        $('#DropArea').html('---- File(s) Uploaded Successfully To ----')  
  
                    }  
  
                })  
  
  
  
  
  
        })  
  
  
  
    </script>  
  
  
}  

Partial View For the Select File Option

@model DOT.ViewModels.VM_LHR_ApplicationClass  
  
  
  
  
@*@using (Ajax.BeginForm("Upload_DD_Files", "LHR", new AjaxOptions { HttpMethod = "POST" }, new { enctype = "multipart/form-data" }))*@  
@*@using (Html.BeginForm("Upload_DD_Files", "LHR", FormMethod.Post, new { enctype = "multipart/form-data" }))*@  
  
@*Using Ajax Keeps it from posting back and clearning the users contact infomation, there has to be a better way because  
    using this way pevents alerting the users that the files uploaded*@  
  
@*@using (Ajax.BeginForm("Upload_DD_Files", "LHR", new AjaxOptions { HttpMethod = "POST" }, new { enctype = "multipart/form-data" }))*@  
@using (Html.BeginForm("Upload_DD_Files", "LHR", FormMethod.Post, new { enctype = "multipart/form-data" }))  
{  
@Html.AntiForgeryToken()  
  
<input type="hidden" name="Info" value='Selected' />  
  
<div class="form-horizontal">  
    <hr />  
    @Html.ValidationSummary(true, "", new { @class = "text-danger" })  
    <div class="form-group">  
        @Html.LabelFor(model => model.FileData, htmlAttributes: new { @class = "control-label col-md-3" })  
        <div class="col-md-4">  
            @Html.TextBoxFor(model => model.FileData, "", new { @type = "file", @multiple = "multiple" })  
            @Html.ValidationMessageFor(model => model.FileData, "", new { @class = "text-danger" })  
  
        </div>  
  
        <div class="col-md-offset-1 col-md-3">  
            <input type="submit" value="Upload Selected File(s)" class="btn btn-primary" />  
        </div>  
  
  
  
        <div class="form-horizontal" style="display:block" id="SelectedFilesStatus">  
  
            <div class="form-group">  
  
                <div class="col-md-offset-2 col-md-10 text-success">  
                    @ViewData["UploadStatus"]  
                </div>  
  
            </div>  
  
        </div>  
  
  
    </div>  
  
  
  
    @*<div class="form-group">  
            <div class="col-md-offset-2 col-md-5">  
                <input type="submit" value="Upload Selected File(s)" class="btn btn-primary" />  
                @ViewBag.UploadStatus  
            </div>  
        </div>*@  
  
  
  
    @*<div class="form-group">  
                <div class="col-md-offset-2 col-md-10 text-success">  
                    @ViewBag.UploadStatus  
                </div>  
        </div>*@  
  
</div>  
  
 }  

Answer 1

you have several design errors.

1) use of statics:

    private static string GV_FNAME = "";  
     private static string GV_LName = "";  
     private static string GV_Email = "";  

this will fail if two users make a request at the same time.

2) multiple forms. a browser only posts the data in the form that is submitted. the form post will pre-render the page, losing data in the other form.

3) on the post actions you do not send the post data to the views

Answer 2

So... should I spilt the option into two pages?
So there is no way to get the data the user typed to stay?
WHen I switch the partial view to using (Ajax.BeginForm....
The parent from data stays put.

But when I use this -> "using (Ajax.BeginForm"
This works but I can't get it to update a viewbag or tempdata just
to show a message.

There as to be a way to trigger and alert yes?

On you 3rd answer, I am not sure what you mean by not sending post data?
The Data is going to the controller and being processed.

So can you give more details on your meaning?

As far as statics... I am using what makes sense to me since session var did not seem to want to work.
Not may people will visit the page at the same time so it wont really matter if there is an overlap.

Answer 3

you don't seem to have a basic understanding of web form processing. You should do some tutorials.

when a form is posted, the form fields values are sent to the server. to redisplay the same form with the same data, the server need to create the same page (view) with the posted data added to the view model and passed to the view

you should review the javascript associated with the ajax form. it just uses ajax to submit the form. the response should be html and the javascript finds the form in the response, extracts the html an replaces the html in the form. so anything you want displayed, should be in the form. typically you would render a partial, to reduce the size of the html. (but I believe the layout is suppressed by default)

Answer 4

In the End I removed the drag and drop element from the form since mvc does not allow both to exist at the same time in my program and do what I needed it to do.
For some reason with both on the page the select file option would not send a viewbag message back that the upload worked. So I just removed it.
I also was able to pass the field information back to the form via the global variable. It may not be the best way but it was the way that worked the best.

I will post what I have as it may help a journey person like myself in the future:

 [HttpPost]  
        public ActionResult SingleFileUpload(HttpPostedFileBase FileData)  
        {  
            try  
            {  
  
                var EmailResponder = new ApplicationClasses.EmailResponderClass();  
  
                //MakeUploadDate No Spaces:  
                string UploadDate = DateTime.Today.ToString("MM/dd/yy");  
                UploadDate = UploadDate.Replace("/", string.Empty);  
  
                //MakeUniqueTicker See: https://stackoverflow.com/questions/9278909/net-short-unique-identifier  
                var ticks = new DateTime(DateTime.Today.Year, DateTime.Today.Month, DateTime.Today.Day).Ticks.ToString();  
                //var ans = DateTime.Now.Ticks - ticks;  
                //var UniqueId = ans.ToString("x").Remove(4,4);  
  
  
  
                string FileNamePrefix = UploadDate + "__" + LHRController.GV_LName + LHRController.GV_FNAME + "__" + Guid.NewGuid().ToString().Remove(5, 10);// ticks.Remove(5, 11);  
  
                VM_LHR_ApplicationClass vm_LHR_ApplicationClass = new VM_LHR_ApplicationClass();  
                vm_LHR_ApplicationClass.CONTACT_FIRST_NAME = GV_FNAME;  
                vm_LHR_ApplicationClass.CONTACT_LAST_NAME = GV_LName;  
                vm_LHR_ApplicationClass.CONTACT_EMAIL = GV_Email;  
  
  
                if (FileData.ContentLength > 0)  
                {  
                    string _FileName = FileNamePrefix + Path.GetFileName(FileData.FileName);  
                    string _path = Path.Combine(Server.MapPath("~/Documents/LEAD/DOCS_IN"), _FileName);  
                    FileData.SaveAs(_path);  
                }  
               // TempData["UploadStatus"] = "File(s) Uploaded Successfully!!";  
  
                string Style = "display: block";  
                ViewBag.DDAreaPartialStyle = Style;  
  
                //Email  
                EmailResponder.Email_Response(1, GV_Email, "AppDevxxxxx", "Document Submission Confirmation", "Thank You For Your Submission " + GV_FNAME + " " + GV_LName, ViewBag.UploadStatus);  
  
                ViewData["UploadStatus"] = "Selected File(s) Uploaded Successfully To ";  
  
                //return PartialView("_SFU");  
  
  
  
                return View("ApplicationUpload",vm_LHR_ApplicationClass);  
  
  
            }  
            catch(Exception e)  
            {  
  
  
                VM_LHR_ApplicationClass vm_LHR_ApplicationClass = new VM_LHR_ApplicationClass();  
                vm_LHR_ApplicationClass.CONTACT_FIRST_NAME = GV_FNAME;  
                vm_LHR_ApplicationClass.CONTACT_LAST_NAME = GV_LName;  
                vm_LHR_ApplicationClass.CONTACT_EMAIL = GV_Email;  
  
                TempData["UploadStatus"] = "File Ppload failed!!, Please Contact";  
  
                string Style = "display: block";  
                ViewBag.DDAreaPartialStyle = Style;  
                return View("ApplicationUpload", vm_LHR_ApplicationClass);  
                //return PartialView("_SFU");  
  
  
            }  
        }