Question

   [HttpPost]
    public ActionResult Create([Bind(Exclude = "vendor_id")]Vendor v)
    {
        if (ModelState.IsValid)
        {
            eproc_db.Vendors.Add(v);
            eproc_db.SaveChanges();
            return RedirectToAction("Index");  
        }
        return View(v);
    }

上面的代码给出了这个错误“当IDENTITY_INSERT设置为OFF时，无法在表'VENDOR'中为标识列插入显式值。

值为0.看着分析器。它也包括vendor_id列。如何排除它？

下面是模型..我还需要做些什么吗？

 [Bind(Exclude = "vendor_id")] 
    public class Vendor
    {
        [Key]
        public decimal  vendor_id {get; set;}
        [Required]
        [Display(Name = "Name")]
        public string vendor_name { get; set; }
        [Required]
        [Display(Name = "Address")]
        public string vendor_address { get; set; }
        [Required]
        [Display(Name = "Tax ID")]
        public string fed_tax_id { get; set; }
        [Required]
        [Display(Name = "Contact Name")]
        public string contact_name { get; set; }
        [Required]
        [Display(Name = "Phone")]
        public string phone { get; set; }
    }

Answer 1

问题是因为对于vendor_id，db列是数字的，这里是十进制的。我把它们都写成小数，错误就消失了。

我也从两个地方删除了[[Bind（Exclude =“vendor_id”）]

如何排除标识列 - mvc3

1 个答案: