Question

我为什么这不起作用而感到茫然。

这是我模特的一部分：

public class AddComplianceReportViewModel 
{
    public PartyViewModel[] InvolvedParties { get; set; }
    public PartyViewModel[] ManagementParties { get; set; }
    public ConcealPartyViewModel[] ConcealParties { get; set; }

    public string ReportedByFirstName { get; set; }
    public string ReportedByLastName { get; set; }
    public string ReportedByBestTimeToContact { get; set; }
    public bool ReportedByRemainAnonymous { get; set; }

    [Phone]
    public string ReportedByPhone { get; set; }

    [EmailAddress]
    public string ReportedByEmail { get; set; }

    public string GeneralDescription { get; set; }
    public string DetaledDescription { get; set; }
}

public class PartyViewModel
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string Title { get; set; }
}

public class ConcealPartyViewModel : PartyViewModel
{
    public string ConcealmentDescription { get; set; }
}

来自我的控制器的相关代码：

[HttpGet, Route("report/new")]
public ViewResult FileReport()
{
    var vm = new AddComplianceReportViewModel()
    {
        ReportedByFirstName = "amy",
        ReportedByLastName = "lastname",
        ReportedByEmail = "my@email.com",
        ReportedByBestTimeToContact = "best time",
        ReportedByPhone = "555-123-4567",
        ReportedByRemainAnonymous = false,
        InvolvedParties = new []
        {
            new PartyViewModel()
            {
                FirstName = "saul",
                LastName = "goodman",
                Title = "lawyer"
            },
            new PartyViewModel()
            {
                FirstName = "walter",
                LastName = "white",
                Title = "cook"
            },
            new PartyViewModel()
            {
                FirstName = "jesse",
                LastName = "pinkman",
                Title = "lackey"
            }
        },
        ManagementParties = new PartyViewModel[]
        {
            new PartyViewModel()
            {
                FirstName = "Gus",
                LastName = "Freng",
                Title = "Boss"
            }
        },
        ConcealParties = new ConcealPartyViewModel[]
        {
            new ConcealPartyViewModel()
            {
                FirstName = "Skyler",
                LastName = "White",
                Title = "Wife",
                ConcealmentDescription = "money laundering"
            },
            new ConcealPartyViewModel()
            {
                FirstName = "Mike",
                LastName = "Ehrmantraut",
                Title = "Enforcer",
                ConcealmentDescription = "hid the bodies"
            }
        },

        GeneralDescription = "general description",
        DetaledDescription = "detailed description"
    };

    return View(vm);
}

[HttpPost, Route("report/new", Name = RouteNames.PostReport)]
public ActionResult FileReport(AddComplianceReportViewModel vm)
{
    return View(vm);
}

我不知道是否需要分享观点。有很多视图代码可以削减相关位。如果需要，我可以添加我的观点。

这是我的浏览器发送到上面第二个控制器方法的表单数据：

ReportedByFirstName =艾米＆安培; ReportedByLastName = latname＆安培; ReportedByPhone =％28555％29 + 123-4567＆安培; ReportedByEmail =我％40email.com＆安培; ReportedByBestTimeToContact =最好+时间＆安培;％5B0％5D.FirstName =索尔＆安培;％5B0％5D。名字=古德曼＆安培;％5B0％5D.Title =律师＆安培;％5B1％5D.FirstName =沃尔特＆安培;％5B1％5D.LastName =白色＆安培;％5B1％5D.Title =煮＆安培;％5B2％5D.FirstName =杰西＆安培;％ 5B2％5D.LastName = pinkman＆安培;％5B2％5D.Title =走狗＆安培;％5B0％5D.FirstName =格斯＆安培;％5B0％5D.LastName = Freng＆安培;％5B0％5D.Title =老板＆安培; GeneralDescription =一般+描述＆安培;持续时间=安培; AwarenessReason =安培; AwarenessReason =安培;％5B0％5D.FirstName =斯凯勒和放大器;％5B0％5D.LastName =白色和放大器;％5B0％5D.Title =妻子和放大器;％5B0％5D.ConcealmentDescription =金钱+洗钱和放大器; ％5B1％5D.FirstName =麦克＆安培;％5B1％5D.LastName = Ehrmantraut＆安培;％5B1％5D.Title =强制实施＆安培;％5B1％5D.ConcealmentDescription = HID +的+体

这是不可能阅读的，所以这里是由Fiddler提供的图像（并非所有字段都适合图像）：

enter image description here

如下图所示，没有任何集合正在填充：

enter image description here

我需要做些什么来填充这些？我不知所措。我在Fiddler截图中注意到派对收藏品含糊不清。我怎么告诉MVC＆＃34;这个组是ConcealedParties，这个组是ManagementParties＆＃34;等？

==================每个请求，意见================

_Parties.cshtml

@model Redacted.Web.Models.Home.PartyViewModel[]

<div class="row">
    <div>@Html.Label("First Name")</div>
    <div>@Html.Label("Last Name")</div>
    <div>@Html.Label("Title")</div>
</div>

@for (var i = 0; i < Model.Count(); i++)
{
    <div class="row">
        <div class="columns medium-1">&nbsp;</div>
        <div class="columns medium-3">
            @Html.EditorFor(model => model[i].FirstName)
        </div>
        <div class="columns medium-3">
            @Html.EditorFor(model => model[i].LastName)
        </div>
        <div class="columns medium-3">
            @Html.EditorFor(model => model[i].Title)
        </div>
    </div>
}

主要观点

@using (Html.BeginForm("FileReport", "Home", FormMethod.Post))
{
    @Html.Partial("_Parties", Model.InvolvedParties ?? new PartyViewModel[] { })
}

ManagementParties集合以相同的方式完成。 ConcealedParties集合具有不同的局部视图，但部分以相同的方式加载。

Answer 1

您需要将部分视图发送到整个主模型，然后使用该模型访问字段。由于您没有这样做，因此您的字段名称无法正确形成，因此模型绑定无法做到这一点。

请参阅此处（来自您的表单数据）：

[0].FirstName

应该是：

InvolvedParties[0].FirstName

但它不能以InvolvedParties作为前缀，因为您的部分视图认为顶级模型本身就是列表，因此遗漏了InvolvedParties。

在模型中阻止null集合的另一个提示，只需使用coalesce在模型构造函数中初始化它们：

public AddComplianceReportViewModel ()
{
    InvolvedParties = InvolvedParties ?? new PartyViewModel[] { };
}

我的viewmodel集合没有绑定

1 个答案: