我环顾四周，找不到有这样问题的人，所以我发布了这个问题。
我在控制器中有两个编辑操作（post和get），在GET中我填充了传递给视图的viewmodel的Wine属性。
在POST上，我读取了viewmodel，并将更改保存到数据库中。之后我想用更新的Wine属性更新我的Lucene搜索索引。但是，我一直收到错误，因为Wine属性没有填充任何导航属性。
我尝试使用db.Wines.Find（ew.wine.WindID）查找新的wine对象，但仍然返回没有导航属性的Wine。值得一提的是，这正是GET编辑操作的作用，并且填充正确。我不知道这里发生了什么。我也试过Wine w = db.Entry（ew.Wine）.Entity来填充那些导航属性，但无济于事...感谢您的帮助！
ViewModel＆amp;葡萄酒模型
public class NewWineViewModel
{
public Wine Wine { get; set; }
public VOAVIRequest VOAVIRequest { get; set; }
public bool IsRequest { get; set; }
public SelectList VarTypes { get; set; }
public SelectList Origins { get; set; }
public SelectList Apps { get; set; }
public SelectList Vintages { get; set; }
public SelectList Importers { get; set; }
public NewWineViewModel()
{
this.Wine = new Wine();
}
}
public class Wine :Updater
{
public int WineID { get; set; }
//public int WineTypeID { get; set; }
[Display(Name = "Varietal/Type")]
public int? VarTypeID { get; set; }
[Display(Name = "Origin")]
public int? OriginID { get; set; }
[Display(Name = "Appellation")]
public int? AppID { get; set; }
[Display(Name = "Vintage")]
public int? VintageID { get; set; }
[Display(Name = "Importer")]
public int? ImporterID { get; set; }
public int ProducerID { get; set; }
public string Designate { get; set; }
[Display(Name = "Drink Window")]
public string DrinkWindow { get; set; }
public string Body { get; set; }
public string SKU { get; set; }
[Display(Name = "Varietal Makeup")]
public string VarietalMakeup { get; set; }
[Display(Name = "Case Production")]
public string CaseProduction { get; set; }
[Display(Name = "Alcohol Content")]
public double? AlcoholContent { get; set; }
public string Winemaker { get; set; }
[Display(Name = "Consulting Winemaker")]
public string ConsultWinemaker { get; set; }
public bool Sustainable { get; set; }
public bool Kosher { get; set; }
public bool Organic { get; set; }
public bool Biodynamic { get; set; }
public bool SalmonSafe { get; set; }
public Boolean Active { get; set; }
[Display(Name = "ResidualSugar")]
public double? RS { get; set; }
public double? pH { get; set; }
public string QRUrl { get; set; }
public virtual WineType WineType { get; set; }
public virtual VarType VarType { get; set; }
public virtual Origin Origin { get; set; }
public virtual App App { get; set; }
public virtual Vintage Vintage { get; set; }
public virtual Importer Importer { get; set; }
public virtual Producer Producer { get; set; }
}
来自控制器的两个编辑操作：
[ProducerEdit]
public ActionResult Edit(int WineID)
{
NewWineViewModel ew = new NewWineViewModel();
ew.Wine = db.Wines.Find(WineID);
ew.VarTypes = new SelectList(db.VarTypes, "VarTypeID", "Name", ew.Wine.VarTypeID);
ew.Origins = new SelectList(db.Origins, "OriginID", "Name", ew.Wine.OriginID);
ew.Apps = new SelectList(db.Apps, "AppID", "Name", ew.Wine.AppID);
ew.Vintages = new SelectList(db.Vintages, "VintageID", "Name", ew.Wine.VintageID);
//might need to handle null on this one
ew.Importers = new SelectList(db.Importers, "ImporterID", "Name", ew.Wine.ImporterID);
return View(ew);
}
//post
[HttpPost]
[ProducerEdit]
public ActionResult Edit(NewWineViewModel ew)
{
if (ModelState.IsValid)
{
ew.Wine.Body = ew.Wine.Body == "Please select wine body" ? string.Empty : ew.Wine.Body;
ew.Wine.UpdatedBy = User.Identity.Name;
ew.Wine.UpdatedOn = DateTime.Now;
db.Entry(ew.Wine).State = EntityState.Modified;
db.SaveChanges();
Wine w = db.Wines.Find(ew.Wine.WineID);
Lucene.LuceneSearch.ClearLuceneIndexRecord(ew.Wine.WineID);
Lucene.LuceneSearch.AddUpdateLuceneIndex(ew.Wine);
if (ew.IsRequest)
{
ew.VOAVIRequest.WineID = ew.Wine.WineID;
ew.VOAVIRequest.CreatedBy = User.Identity.Name;
ew.VOAVIRequest.CreatedOn = DateTime.Now;
db.VOAVIRequests.Add(ew.VOAVIRequest);
db.SaveChanges();
return RedirectToAction("Requested");
//redirect to "Request Submitted" page for new wines
}
return RedirectToAction("Details", new { id = ew.Wine.WineID });
}
else
{
ew.VarTypes = new SelectList(db.VarTypes, "VarTypeID", "Name", ew.Wine.VarTypeID);
ew.Origins = new SelectList(db.Origins, "OriginID", "Name", ew.Wine.OriginID);
ew.Apps = new SelectList(db.Apps, "AppID", "Name", ew.Wine.AppID);
ew.Vintages = new SelectList(db.Vintages, "VintageID", "Name", ew.Wine.VintageID);
//might need to handle null on this one
ew.Importers = new SelectList(db.Importers, "ImporterID", "Name", ew.Wine.ImporterID);
return View(ew);
}
}
编辑 - 这是Razor中的表格
@using (Html.BeginForm())
{
@Html.ValidationSummary(true)
<h3>@ViewBag.ProducerName</h3>
@Html.HiddenFor(m => m.Wine.WineID)
@Html.HiddenFor(m => m.Wine.ProducerID)
@Html.HiddenFor(m => m.IsRequest)
<h4 style="margin-top: -40px; padding-bottom: 10px;">Editing @Model.Wine.Name</h4>
<table>
<tr>
<td>@Html.LabelFor(m => m.Wine.VarTypeID)
</td>
<td style="display: inline">
<div class="voavi-select">
@Html.DropDownListFor(m => m.Wine.VarTypeID, Model.VarTypes, new { @class = "chzn-select" })
</div>
@Html.TextBoxFor(m => m.VOAVIRequest.VarType, new { style = "display: none;", @class = "voavignore" })
<a id="lnkNewVar" class="filetypes" href="#">New Varietal?</a> @* @Html.ValidationMessageFor(m => m.VOAVIRequest.VarType)*@
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.OriginID)
</td>
<td>
<div class="voavi-select">
@Html.DropDownListFor(m => m.Wine.OriginID, Model.Origins, new { @class = "chzn-select" })
</div>
@Html.TextBoxFor(m => m.VOAVIRequest.Origin, new { style = "display: none;", @class = "voavignore" })
<a id="lnkNewOrigin" class="filetypes" href="#">New Origin?</a>
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.AppID)
</td>
<td>
<div class="voavi-select">
@Html.DropDownListFor(m => m.Wine.AppID, Model.Apps, new { @class = "chzn-select" })
</div>
@Html.TextBoxFor(m => m.VOAVIRequest.App, new { style = "display: none;", @class = "voavignore" })<a
id="lnkNewApp" class="filetypes" href="#">New Varietal?</a>
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.VintageID)
</td>
<td>
<div class="voavi-select">
@Html.DropDownListFor(m => m.Wine.VintageID, Model.Vintages, new { @class = "chzn-select" })
</div>
@Html.TextBoxFor(m => m.VOAVIRequest.Vintage, new { style = "display: none;", @class = "voavignore" })
<a id="lnkNewVintage" class="filetypes" href="#">New Varietal?</a>
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.Designate)
</td>
<td>
@Html.EditorFor(m => m.Wine.Designate)
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.DrinkWindow)
</td>
<td>
@Html.EditorFor(m => m.Wine.DrinkWindow)
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.VarietalMakeup)
</td>
<td>
@Html.EditorFor(m => m.Wine.VarietalMakeup)
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.Body)
</td>
<td>
@Html.DropDownListFor(m => m.Wine.Body, new SelectList(Model.Wine.BodyList, "Text", "Text", Model.Wine.Body), new { @class = "chzn-select" })
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.ImporterID)
</td>
<td>
<div class="voavi-select">
@Html.DropDownListFor(m => m.Wine.ImporterID, Model.Importers, new { @class = "chzn-select" })</div>
@Html.TextBoxFor(m => m.VOAVIRequest.Importer, new { style = "display: none;" })
<a id="lnkNewImporter" class="filetypes" href="#">New Varietal?</a>
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.SKU)
</td>
<td>
@Html.EditorFor(m => m.Wine.SKU)
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.CaseProduction)
</td>
<td>
@Html.EditorFor(m => m.Wine.CaseProduction)
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.AlcoholContent)
</td>
<td>
@Html.EditorFor(m => m.Wine.AlcoholContent)
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.RS)
</td>
<td>
@Html.EditorFor(m => m.Wine.RS)
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.pH)
</td>
<td>
@Html.EditorFor(m => m.Wine.pH)
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.Winemaker)
</td>
<td>
@Html.EditorFor(m => m.Wine.Winemaker)
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.ConsultWinemaker)
</td>
<td>
@Html.EditorFor(m => m.Wine.ConsultWinemaker)
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.Sustainable)
</td>
<td>
@Html.EditorFor(m => m.Wine.Sustainable)
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.Kosher)
</td>
<td>
@Html.EditorFor(m => m.Wine.Kosher)
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.Organic)
</td>
<td>
@Html.EditorFor(m => m.Wine.Organic)
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.Biodynamic)
</td>
<td>
@Html.EditorFor(m => m.Wine.Biodynamic)
</td>
</tr>
<tr>
<td>
@Html.LabelFor(m => m.Wine.SalmonSafe)
</td>
<td>
@Html.EditorFor(m => m.Wine.SalmonSafe)
</td>
</tr>
</table>
<p>
<input type="submit" value="Update" />
</p>
}