我觉得我想做的事情应该很容易（这让我感觉很愚蠢），但由于我无法弄清楚，我想我想念如何理解 HTTP POST。
这是我认为应该发生的情况：控制器创建 QuoteDimensionViewModel QDVM 然后将其发送到视图。视图创建网页，其中包含模型中各种变量的文本框。用户填写这些文本框。用户单击生成 HTTP 帖子的按钮，然后使用文本框中的新值更新模型并发送到控制器。控制器完成它的工作，我们从此过上幸福的生活。
这是我认为正在发生的事情：当用户点击按钮并创建一个新的 QuoteDimensionViewModel 时，只有与它们关联的文本框的值才会被填充。所以在这种情况下，我没有变量 Eid 的文本框，因此 Eid 的值在 Get 中可能为 5，但在 Post 时，该值始终为 0。这在尝试使用 IValidatableObject 验证数据时会导致问题。
TLDR；我基本上想将带有 X 变量的模型发送到视图，然后更改这些变量的 Y。使用更改验证更新的模型并将其 POST 回控制器。
感谢您的任何帮助和建议
首先是模型：
public class QuoteDimensionViewModel
{
private QuoteDatabaseEntities Quotedb = new QuoteDatabaseEntities();
[Required]
public string ShowerImage { get; set; }
[Required]
public EnclosureDimension EnclosureDimensions { get; set; } \\Wrapper class
[Required]
public QuoteDimensionsWrapper QuoteDimensions { get; set; } \\Wrapper class
[Required]
public int Eid { get; set; }
[Required]
public int Sid { get; set; }
[Required]
public int Hid { get; set; }
[Required]
public int Gid { get; set; }
public QuoteDimensionViewModel(){ }
public QuoteDimensionViewModel(int eid, int sid, int hid, int gid)
{
Eid = eid;
Sid = sid;
Hid = hid;
Gid = gid;
this.ShowerImage = (from x in Quotedb.Showers
where x.ID == Sid
select x.Picture ).Single();
this.EnclosureDimensions = (from x in Quotedb.EnclosureDimensions
where (x.Enclosure_ID_FK == Eid)
select x).Single();
this.QuoteDimensions = new QuoteDimensionsWrapper(Eid);
}
}
public class QuoteDimensionsWrapper: IValidatableObject
{
public int Eid { get; set; }
public int ID { get; set; }
public int Quote_ID_FK { get; set; }
public double Height { get; set; }
public double Width { get; set; }
public QuoteDimensionsWrapper(int eid)
{
Eid = eid;
}
public QuoteDimensionsWrapper()
{
}
public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
{
\\Validation stuff based on the value of Eid
}
现在控制器：
public class QuoteDimensionViewModelController : Controller
{
public ActionResult Quote(int Eid, int Sid, int Hid, int Gid)
{
QuoteDimensionViewModel QDVM = new QuoteDimensionViewModel(Eid, Sid, Hid, Gid);
return View(QDVM);
}
[InitializeSimpleMembership]
[HttpPost]
public ActionResult Quote(QuoteDimensionViewModel QDVM)
{
//Validate the Data then write it to a database
return RedirectToAction("Index", "QuoteViewModel", new { id = myQid });
}
}
}
和视图：
@model QuoteWebApp.Models.ViewModels.QuoteDimensionViewModel
@{
ViewBag.Title = "Quote";
}
<h2>Dimensions</h2>
<img src=@Url.Content(Model.ShowerImage) alt="Image" />
@using (Html.BeginForm()) {
@Html.ValidationSummary(true)
<fieldset>
<legend>QuoteDimensions</legend>
<div class="editor-label">
@Html.LabelFor(model =>model.QuoteDimensions.Height)
</div>
<div class="editor-field">
@Html.EditorFor(model =>model.QuoteDimensions.Height)
@Html.ValidationMessageFor(model =>model.QuoteDimensions.Height)
</div>
<div class="editor-label">
@Html.LabelFor(model =>model.QuoteDimensions.Width)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.QuoteDimensions.Width)
@Html.ValidationMessageFor(model => model.QuoteDimensions.Width)
</div>
<div class="editor-label">
@Html.LabelFor(model =>model.QuoteDimensions.DoorWidth)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.QuoteDimensions.Width)
@Html.ValidationMessageFor(model => model.QuoteDimensions.Width)
</div>
}
<p>
<input type="submit" value="Quote" />
</p>
</fieldset>
}
@section Scripts {
@Scripts.Render("~/bundles/jqueryval")
}