Img Path is Required error in mvc using EF

Question

I am inserting the Product, Image, and Product Detail, Everything is Fine but when I insert image then I got the error is ImagePath is not inserting when I use extra table image then this error occur, if I use column imgpath in Product then it's working, I use extra table beacuase I want to insert multiple images that's why I use extra table. the error is: imgPath is Required.

when I use breakpoint I can see the image then the cursor will reach on save function I don't the values in image object. Any Expert can tell me where I am wrong . if you any easy solution kindly guide me. Image

 Image

public partial class Image
{

    public int imgID { get; set; }
    public string ImgName { get; set; }
    public bigint prodid{ get; set; }
}

Product Model

public partial class Product
{

    public long ProductID { get; set; }
    public string PName { get; set; }
    public string PDescription { get; set; }
}

Product Master Detail

public partial class MasterDetail
{
    public int mDID { get; set; }

    public long ProductID { get; set; }
    public string OS { get; set; }
    public string SimType { get; set; }
    public string Other { get; set; }
}

 Product Interface

public interface IProduct
{

    void Add_NewProduct(Product prod, Specification spec, Image pic);
}

Product Concrete class

public void Add_NewProduct(Product prod, Specification spec, Image pic)
{
try
{
_db.Products.Add(prod);
_db.Specifications.Add(spec);
_db.Images.Add(pic);
_db.SaveChanges();
}
catch (Exception)
{

throw;
}
}

Product Controller

[HttpPost]
public ActionResult AddNewProducts(ProductViewModel prod, List file)
{
try
{
List PTlist = _IproductType.PTList();
ViewBag.Ptlist = new SelectList(PTlist, "PType_ID", "P_Name");

//Product Color List
List pColorList = _IProductColor.PColorlist();
ViewBag.pColor_List = new SelectList(pColorList, "C_ID", "C_Name_OR_Code");

List pSizeList = _ISize.pSizeList();
ViewBag.pSizeLists = new SelectList(pSizeList, "S_ID", "S_Size");


string PathDB = string.Empty;

foreach (HttpPostedFileBase files in file)
{
string filename = Path.GetFileName(files.FileName);
string _filename = DateTime.Now.ToString("yymmssff") + filename;
string extension = Path.GetExtension(files.FileName);
string path = Path.Combine(Server.MapPath("~/Upload/"), _filename);
PathDB = "~/Upload/" + _filename;
if (extension.ToLower() == ".jpeg" || extension.ToLower() == ".jpg" || extension.ToLower() == ".png")
{
if (files.ContentLength <= 1000000)
{
img = new Image();
prod.ImgID = img.imgID;
prod.ImgPath = PathDB;
prod.ProductID = img.ProdID;

}
else
ViewBag.sizemsg = "Size Limit accessed ";
}
else
ViewBag.fileformat = "File is not Format is not Correct";

}

Product pro = new Product();
pro.ProductID = prod.ProductID;
pro.PName = prod.PName;
pro.PDescription = prod.PDescription;

Specification p_spec = new Specification();
p_spec.PSpecificationID = prod.PSpecificationID;
p_spec.ProductID = prod.ProductID;
p_spec.OS = prod.OS;
p_spec.DualSim = prod.DualSim;
p_spec.TouchScreen = prod.TouchScreen;
p_spec.Other = prod.Other;
_IProducts.Add_NewProduct(pro, p_spec, img);
ViewBag.message = "Record Saved Successfully";
ModelState.Clear();

}
catch (Exception ex)
{

throw ex;
}
return RedirectToAction("ProductsList");
}

Product View

@using (Html.BeginForm("AddNewProducts", "Items", FormMethod.Post, new { enctype = "multipart/form-data", @class = "form-horizontal" }))
{ "tabimage" class="tab-pane">
class="mgtp-15 mgbt-xs-20"> Images

class="vd_panel-menu">
 class="btn vd_btn vd_bg-blue btn-sm save-btn">class="fa fa-save append-icon"> Save Changes class="btn btn-default btn-sm" data-toggle="modal" data-target="#myModal">class="fa fa-times append-icon"> Cancel Changes

View

@using (Html.BeginForm("AddNewProducts", "Items", FormMethod.Post, new { enctype = "multipart/form-data", @class = "form-horizontal" }))
{
    <div id="tabimage" class="tab-pane">
       <h3 class="mgtp-15 mgbt-xs-20"> Images</h3>
         <div class="vd_panel-menu">
           <div> <a class="btn vd_btn vd_bg-blue btn-sm save-btn"><i class="fa fa-save append-icon"></i> Save Changes</a> <a class="btn btn-default btn-sm" data-toggle="modal" data-target="#myModal"><i class="fa fa-times append-icon"></i> Cancel Changes</a></div>
         </div>
         <div class="form-group">
            <label class="control-label col-lg-3 file_upload_label"> <span title="" data-toggle="tooltip" class="label-tooltip" data-original-title="Format JPG, GIF, PNG. Filesize 8.00 MB max."> Add a new image to this product </span> </label>
            <div class="col-lg-9">
                <span class="btn vd_btn vd_bg-green fileinput-button">
                <i class="glyphicon glyphicon-plus"></i> <span>Add files...</span>
                <!-- The file input field used as target for the file upload widget -->
                <input type="file" name="file" required="required" multiple id="file" />
                </span>
            </div>
         </div>
   </div>
}