mvc model fileupadload does not send model data - file-upload

Question

I have a mvc 5 asp.net file upload that upload pictures and create path for them.
File uploaded successfully, but model data does comes in null.
This is my model:
[Table("Slider")]
public partial class Slider
{
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
public Slider()
{
Slider1 = new HashSet<Slider>();
}
public int ID { get; set; }
public string Path { get; set; }
public int? Slider_ID { get; set; }
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
public virtual ICollection<Slider> Slider1 { get; set; }
}
This is Controller part:
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create([Bind(Include = "ID,Path")] Slider slider, List<HttpPostedFileBase> FileContent)
{
if (ModelState.IsValid)
{
byte[] imageData = null;
if (Request.Files.Count > 0)
{
HttpPostedFileBase poImgFile = Request.Files["Path"];
using (var binary = new BinaryReader(poImgFile.InputStream))
{
imageData = binary.ReadBytes(poImgFile.ContentLength);
}
}
string picturePath = string.Format(Server.MapPath("~/content/slider/{0}.jpg"), slider.ID);
CreateDirectory(picturePath);
using (FileStream writer = new FileStream(picturePath, FileMode.Create))
{
writer.Write(imageData, 0, imageData.Length);
}
db.Sliders.Add(slider);
db.SaveChanges();
return RedirectToAction("Index");
}
return View(slider);
}
And this is the view:
#using (Html.BeginForm("Create", "Sliders", FormMethod.Post, new { #class = "form-horizontal", role = "form", enctype = "multipart/form-data" }))
{
#Html.AntiForgeryToken()
<div class="form-horizontal">
<hr />
#Html.ValidationSummary(true, "", new { #class = "text-danger" })
<div class="col-12 form-group">
<div class="row">
#Html.LabelFor(model => model.Path, "Picture", htmlAttributes: new { #class = "control-label col-12 col-md-2" })
<div class="col-12 col-md-10">
<input type="file" name="Path" id="fileUpload" accept=".png,.jpg,.jpeg,.gif" />
#Html.ValidationMessageFor(model => model.Path, "", new { #class = "text-danger" })
</div>
</div>
</div>
<div class="form-group">
<div class="col-12 text-left">
<input type="submit" value="create" class="btn btn-success" /> | #Html.ActionLink("back to list", "Index", null, new { #class = "btn btn-primary" })
</div>
</div>
</div>
}
When I check my database I see that Path is :
System.Web.HttpPostedFileWrapper
and Slider_ID is null and Slider_ID1 is null too.
Any suggestions?

Answer 1

After searching my previous codes, I've found that, when saving changes to db in controller class, db.SaveChanges(); slider argument which had been sent to Create method, will get new ID.
I've added these 2 lines after if:
if (ModelState.IsValid)
{
db.Sliders.Add(slider);
db.SaveChanges();
and done my other business logic in lines after that.