获取Create(HttpPost)中的PropertyValues - 非强类型

时间:2013-07-10 14:54:27

标签: c# asp.net-mvc-3 reflection

我收到了以下代码:

BusinessObjectController.cs:

public ActionResult Create(string name)
{
    var type = viewModel.GetTypeByClassName(name);
    return View(Activator.CreateInstance(type));
}

[HttpPost]
public ActionResult Create(object entity)
{
   //Can't access propertyvalues
}

Create.cshtml:

   @{
        ViewBag.Title = "Create";
        List<string> attributes = new List<string>();
        int propertiesCount = 0;
        foreach (var property in Model.GetType().GetProperties())
        {
            //if (property.Name != "Id")
            //{
            //    attributes.Add(property.Name);
            //}
        }
        propertiesCount = Model.GetType().GetProperties().Length - 1; //-1 wegen Id 
    }

    <h2>Create</h2>

    <script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript">     </script>
    <script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>

    @using (Html.BeginForm()) {
        @Html.ValidationSummary(true)
        <fieldset>

        <legend>@Model.GetType().Name</legend>

        @for (int i = 0; i < propertiesCount; i++)
        {
            <div class="editor-label">
                @Html.Label(attributes[i])
            </div>

            <div class="editor-field">
                @Html.Editor(attributes[i])
                @Html.ValidationMessage(attributes[i])
            </div>
        }
        <p>
            <input type="submit" value="Create" />
        </p>
    </fieldset>
}

<div>
    @Html.ActionLink("Back to List", "Index")
</div>

如您所见,我在开始时没有在Create.cshtml中定义任何模型,它可以是任何现有类型(来自模型)。

在Create.cshtml中,我正在创建标签和编辑器(文本框),基于指定类型的属性/属性。一切正常,但在我点击“创建”结束后,我从我的BusinessObjectController输入第二个“创建”方法,我似乎无法访问任何属性值? (来自新创建的对象)

但是,如果我将对象的类型更改为“有效的模型类型” - 例如“Car”,它会显示我输入的值:

[HttpPost]
public ActionResult Create(Car entity)
{
   //Can access any propertyvalues, but its not dynamic!
}

我需要动态..我怎样才能获得这些属性值?或者我是否需要尝试以某种方式从HTML响应中获取它们?什么是最好的方式,请帮助..

1 个答案:

答案 0 :(得分:2)

尝试使用FormCollection

public ActionResult Create(FormCollection collection)
{
   //Can access any propertyvalues, but its not dynamic!
}

然后,您可以使用类似

的内容访问这些值
    string s = string.Empty;
    foreach (var key in collection.AllKeys) {
        s += key + " : " + collection.Get(key) + ", ";
    }