MVC模型绑定保持值NULL

我试图让自定义模型绑定工作，但由于某些原因未设置值。代码似乎ligit比较它的工作代码，但它仍然没有绑定。我想这是我失踪的一些微不足道的事情。MVC模型绑定保持值NULL

自定义模型：

//Cluster is from Entity Framework 

//BaseViewModelAdmin defines: 
public List<KeyValuePair<string, string>> MenuItems; 
public IPrincipal CurrentUser = null; 
public Foundation Foundation; //also from Entity Framework 

public class AdminClusterCreateModel : BaseViewModelAdmin 
{ 
    public Cluster Item; 
    public AdminClusterCreateModel() 
    { 
     Item = new Cluster(); 
    } 
}

视图形式如下：

@using (Html.BeginForm()) { 
    @Html.ValidationSummary(true) 

    <fieldset> 
     <legend>Cluster</legend> 

     <div class="editor-label"> 
      @Html.LabelFor(model => model.Item.Active) 
     </div> 
     <div class="editor-field"> 
      @Html.EditorFor(model => model.Item.Active) 
      @Html.ValidationMessageFor(model => model.Item.Active) 
     </div> 


     <div class="editor-label"> 
      @Html.LabelFor(model => model.Item.Name) 
     </div> 
     <div class="editor-field"> 
      @Html.EditorFor(model => model.Item.Name) 
      @Html.ValidationMessageFor(model => model.Item.Name) 
     </div> 

     <p> 
      <input type="submit" value="Create" /> 
     </p> 
    </fieldset> 
}

而且，所述控制器：

[HttpPost] 
public ActionResult Create(AdminClusterCreateModel model, FormCollection form) 
{ 
    if(ModelState.IsValid) //true 
    { 
     var test = form["Item.Name"]; //Value is correct from form (EG: Test) 
     UpdateModel(model); //no error 
    } 

    //At this point model.Item.Name = null <--- WHY? 

    return View(model); 
}

群集上请求

public partial class Cluster 
{ 
    public Cluster() 
    { 
     this.Team = new HashSet<Team>(); 
    } 

    public long Id { get; set; } 
    public System.DateTime Created { get; set; } 
    public System.DateTime Modified { get; set; } 
    public bool Active { get; set; } 
    public long FoundationId { get; set; } 
    public string Name { get; set; } 

    public virtual Foundation Foundation { get; set; } 
    public virtual ICollection<Team> Team { get; set; } 
}

来源

2013-04-16 Hugo Delsing

我们能看到你的集群类？ Item.Name绝对是公共财产而不是公共领域吗？这是一段时间，但IIRC它只会绑定到属性。 – Xefan

我已将它添加到问题 –

您是否检查过'UpdateModel'中是否有更新'model.Item'的内容？ –

DefaultModelBinder“属性”明确的作品，而不是“字段”

在AdminClusterCreateModel更改public Cluster Item到public Cluster Item {get; set;}应该做的伎俩。

public class AdminClusterCreateModel : BaseViewModelAdmin 
{ 
    public Cluster Item {get; set;} 

    public AdminClusterCreateModel() 
    { 
     Item = new Cluster(); 
    } 
}

问候

来源

2013-04-17 09:53:33 shakib

MVC模型绑定保持值NULL

回答

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