Hello,
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My problem is in the Edit view, it gets all the information except the logo.. my edit get controller is :

// GET: Billers/Edit/5
        public ActionResult Edit(string id, HttpPostedFileBase logo)
        {
            if (id == null)
            {
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
            }
            Biller biller = db.Billers.Find(id);
            if (biller == null)
            {
                return HttpNotFound();
            }
            return View(biller);
        }
        ///THE VIEW
        <div class="form-group">
        @Html.LabelFor(model => model.Logo, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            <!--<input type="file" class="form-control" name="logo" accept="image/png,image/jpg,image/jpeg" />-->
            @Html.EditorFor(model => model.Logo, new { htmlAttributes = new { @class = "form-control", type = "file", accept = "image/x-png, image/gif, image/jpeg" } })
            @Html.ValidationMessageFor(model => model.Logo, "", new { @class = "text-danger" })
        </div>
        </div>

And when if i edit a textbox only and i save the modified fields, it save a null object in logo
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