It is not possible to move attachments through loading kendo from one view to another view

Question

We are working on the Kendo MVC user interface, where we send data from one view to another, all data (test tag, drop-down list) is transferred to the next view, except for attachments (pdf, xlsx).

Below is the code that we wrote in the controller to capture from the view and save data and transfer the same data to another view and bind the data to the kendo controls (you can also control the download)

public ActionResult SaveData(System.Web.Mvc.FormCollection form, IEnumerable<HttpPostedFileBase> files) // insert operation { //*************************// if (form != null) { string ddluserexceptioncategory = Convert.ToString(form["txtexceptioncategory"], CultureInfo.InvariantCulture); if (!string.IsNullOrEmpty(ddluserexceptioncategory)) { ddluserexceptioncategory = ddluserexceptioncategory.Trim(); } if (ddluserexceptioncategory == "User Management") { //Bind the data to the class object(_clsObj) if (files != null) { TempData["FileName"] = files; _clsObj.Files = files; } TempData["SecondViewData"] = _clsObj; return RedirectToAction("ExceptionType", "Home", new { id = 0, regionId = _clsObj.RegionId, status1 = "New,In Progress", keyword1 = string.Empty }); } } string regions = "", statusValue = ""; if (form != null) { regions = form["hiddenregionselected"] + ""; statusValue = form["hiddenstatusselected"] + ""; } return RedirectToAction("homepage", "Home", new { region = regions, status = statusValue }); } 

Below is the code that we associate with the request for the second

  @if (TempData["FileName"] != null) { IEnumerable<HttpPostedFileBase> firstFile = (IEnumerable<HttpPostedFileBase>)TempData["FileName"]; <div class="k-dropzone"> <div class="k-button k-upload-button"> <input name="files" type="file" data-role="upload" multiple="multiple" autocomplete="off" tabindex="-1" class="valid" style="display: none;"> <input id="files" name="files" type="file" data-role="upload" multiple="multiple" autocomplete="off"> <ul id="files1" class="k-upload-files k-reset"> @foreach (var file in firstFile) { string filename= Path.GetFileName(file.FileName); <li class="k-file" data-uid="7aa03676-4dac-468e-b34a-99ac44d23040"> <span class="k-icon k-success">uploaded</span> <span class="k-filename" title="@filename">@filename</span> <strong class="k-upload-status"> <span class="k-icon k-delete"></span> </strong> </li> } </ul> </div> </div> <script> jQuery(function() {jQuery("#files").kendoUpload( {"select":uploadselect, "localization":{"select":"Browse file", "headerStatusUploading":"uploading..", "headerStatusUploaded":"uploded.."}, "async":{"saveUrl":"/Home/Save", "autoUpload":false,"removeUrl": "/Home/Remove"}});}); </script> } else { @(Html.Kendo().Upload().Name("files").Async(a => a.Save("Save", "Home").Remove("Remove", "Home").AutoUpload(false)).Multiple(true).Messages(m => { m.Select("Browse file"); }).Events(events => events.Select("uploadselect"))) } 

Any suggestions or help are greatly appreciated.

Answer 1

I assume that the problem comes from using TempData to get this data from your markup to your controller or vice versa.

As you know, everything that you put in TempData is discarded after completing the following query ( Using Tempdata in ASP.NET MVC - Best Practice , http://www.codeproject.com/Articles/476967/What-is-ViewData-ViewBag -and-TempData-MVC-Option ).

I would suggest trying to use ViewBag to prove this theory. If this proves, you might consider transferring this data as part of a complex object instead of using MVC data dictionaries.