ASP.NET MVC路由参数替换模型字段

Question

我正在使用Visual Studio 2017社区版测试ASP.NET MVC 5应用程序。

我试图用以下代码将Assort模型保存到数据库。我正在使用URL Assort Create导航到/Assort/Create/1A页面。在1A的create页面上需要参数Assort，因为我需要在创建页面本身上显示该参数的一些附加信息。

但是当我提交数据时，1A参数值被插入为ID模型的Assort值，因此我的ModelState无效，我无法保存数据。

谁能帮我？

模型

public class Assort
{
    [Key]
    public int ID { get; set; }

    [Display(Name = "Assort No")]
    [Required(ErrorMessage = "Assort No can not be empty.")]
    public int ASSORTNO { get; set; }

    [Display(Name = "Date")]
    [Required(ErrorMessage = "Date can not be empty.")]
    public DateTime DATE { get; set; }

    [Display(Name = "RFNO")]
    [Required(ErrorMessage = "RFNO can not be empty.")]
    [StringLength(50)]
    public string RFNO { get; set; }

    [Display(Name = "Manager")]
    [Required(ErrorMessage = "Manager can not be empty.")]
    public int MANAGER { get; set; }

    [Display(Name = "Caret")]
    [Required(ErrorMessage = "Caret can not be empty.")]
    public decimal CARET { get; set; }

    [Display(Name = "MFG Size")]
    [Required(ErrorMessage = "MFG Size can not be empty.")]
    public decimal MFGSIZE { get; set; }

    [Display(Name = "Total PCS")]
    [Required(ErrorMessage = "Total PCS can not be empty.")]
    public decimal TOTALPCS { get; set; }

    [StringLength(50)]
    public string APPROVALSTATUS { get; set; }

    [Display(Name = "Details")]
    public string DETAILS { get; set; }

    [ScaffoldColumn(false)]
    public DateTime CREATE_TIMESTAMP { get; set; }
    [ScaffoldColumn(false)]
    public DateTime LAST_EDIT_TIMESTAMP { get; set; }

    [UIHint("AssortReturn")]
    public virtual List<AssortReturn> AssortReturn { get; set; }

    public Assort()
    {
        AssortReturn = new List<AssortReturnModel.AssortReturn>();
    }

    [ForeignKey("RFNO")]
    public virtual Rough rough { get; set; }
}

行动

[HttpPost]
    [ValidateAntiForgeryToken]
    public ActionResult Create(Assort assort)
    {
        if (ModelState.IsValid)
        {
            assort.APPROVALSTATUS = "NOT APPROVED";
            assort.CREATE_TIMESTAMP = DateTime.Now;
            assort.LAST_EDIT_TIMESTAMP = DateTime.Now;
            db.Assorts.Add(assort);
            db.SaveChanges();
            return RedirectToAction("Index");
        }
        Initialize(assort.RFNO,"CREATE");
        return View(assort);
    }

视图

@using (Html.BeginForm()) 
{
@Html.AntiForgeryToken()

<div class="form-horizontal">

    <hr />
    @Html.ValidationSummary(true, "", new { @class = "text-danger" })
    <div class="form-group">
        @Html.LabelFor(model => model.ASSORTNO, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.ASSORTNO, new { htmlAttributes = new {@readonly="readonly",@Value=ViewBag.ASSORTNO, @class = "form-control" } })
            @Html.ValidationMessageFor(model => model.ASSORTNO, "", new { @class = "text-danger" })
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.DATE, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.DATE, new { htmlAttributes = new {@autofocus="autofocus",@Value=ViewBag.CURRENTDATE, @class = "form-control date" } })
            @Html.ValidationMessageFor(model => model.DATE, "", new { @class = "text-danger" })
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.RFNO, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.RFNO, new { htmlAttributes = new { @readonly = "readonly", @Value = ViewBag.RFNO, @class = "form-control" } })
            @Html.TextBox("AVAILABLECARET",(decimal)ViewBag.AVAILABLECARET,new {@class="form-control txtAvailablecaret",@readonly="readonly" })
            @Html.ValidationMessageFor(model => model.RFNO, "", new { @class = "text-danger" })
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.MANAGER, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @*@Html.EditorFor(model => model.MANAGER, new { htmlAttributes = new { @class = "form-control" } })*@
            @Html.DropDownListFor(model => model.MANAGER, new SelectList(ViewBag.MANAGERLIST, "ID", "USERNAME"), "Select Manager", new { @class = "form-control" })
            @Html.ValidationMessageFor(model => model.MANAGER, "", new { @class = "text-danger" })
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.CARET, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.CARET, new { htmlAttributes = new { @class = "form-control txtCaret" } })
            @Html.ValidationMessageFor(model => model.CARET, "", new { @class = "text-danger" })
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.MFGSIZE, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.MFGSIZE, new { htmlAttributes = new { @class = "form-control" } })
            @Html.ValidationMessageFor(model => model.MFGSIZE, "", new { @class = "text-danger" })
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.TOTALPCS, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.TOTALPCS, new { htmlAttributes = new { @class = "form-control" } })
            @Html.ValidationMessageFor(model => model.TOTALPCS, "", new { @class = "text-danger" })
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.DETAILS, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.DETAILS, new { htmlAttributes = new { @class = "form-control" } })
            @Html.ValidationMessageFor(model => model.DETAILS, "", new { @class = "text-danger" })
        </div>
    </div>

    <div class="form-group">
        <div class="col-md-offset-2 col-md-10">
            <input type="submit" value="Create" class="btn btn-default btnCreate" />
        </div>
    </div>
</div>

}

Answer 1

这是因为默认路由正在处理您的请求。看起来像：

{controller}/{action}/{id}

所以A1绑定了ID。如果你想要一个不同的行为，比如说A1仍然是URL的一部分，但是绑定到另一个参数，比如“name”，你需要一个新的路径：

    routes.MapRoute(
        name: "CreateAssort",
        url: "Assort/Create/{name}",
        defaults: new { controller = "Assort", action = "Create"}
    );

    routes.MapRoute(
        name: "Default",
        url: "{controller}/{action}/{id}",
        defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
    );

现在“name”将保存A1而不是ID。请注意您的自定义路由如何在默认路由之前。这很重要 - 路由选择匹配请求的第一条路由。

Answer 2

你可以做的是在你的视图中添加一个名为hidden的ID输入字段。

当提交表单时，此字段中的值将优先于您的路径中的值，即“1A”，如果您未设置隐藏输入的值，则模型将ID设置为0。