Question

当我从下拉列表中选择类别时，它不会保存在数据库中。在数据库中，它显示101所有值

我的view.cshtml是

<h4>RecStock</h4>
    <hr />
    @Html.ValidationSummary(true, "", new { @class = "text-danger" })
    <div class="form-group">
        @Html.LabelFor(model => model.Category, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            <div class="editor-field">
                @Html.DropDownList("Category",null, new { @class = "form-control" } )
                </div>
                @Html.ValidationMessageFor(model => model.Category, "", new { @class = "text-danger" })
            </div>
    </div>

我的控制器

 public ActionResult Create()
    {
        ViewBag.Category = new SelectList(db.ProductDetails, "id", "Category");
        return View();
    }


    [HttpPost]
    [ValidateAntiForgeryToken]
    public ActionResult Create([Bind(Include = "Category,ProductName,ReceiveQty,Date")] RecStock recStock)
    {

        if (ModelState.IsValid)
        {
            db.RecStocks.Add(recStock);
            ViewBag.Category = new SelectList(db.ProductDetails, "id", "Category", recStock.id);
            db.SaveChanges();
            return RedirectToAction("Index");
        }

        return View(recStock);
    }

Answer 1

你应该使用＆＃34; DropDownListFor＆＃34;并将选定的下拉值分配给相应的模型属性，如下所示：

@Html.DropDownListFor(m => m.MyModelProperty, new SelectList(Model.ListOfStuff, "ListOfStuffId", "ListOfStuffName"), string.Empty, new {@class = "form-control", id = "myList"})

如何在asp.net MVC中保存数据库中的下拉值

1 个答案: