ASP .NET MVC3 如何从部分视图发送数据

Question

这里是场景： 我已经设置了几个 ViewModel，例如：

public class ThreadEditorView
{
    public int ForumID { get; set; }
    public ThreadEditorPartialView ThreadEditor { get; set; }
    public ThreadEditorSpecial ThreadSpecial { get; set; }
}

现在我有并查看：

@using (Html.BeginForm("NewThread", "Thread", FormMethod.Post, 
    new {@enctype="multipart/form-data"})) {

    @Html.ValidationSummary(true)
    <fieldset>
        @Html.Partial("_ThreadEditor", Model.ThreadEditor)
        @Html.Partial("_SpecialProperties", Model.ThreadSpecial)
        <p>
            <input type="submit" value="Create" />
        </p>
    </fieldset>
}

问题是如何将数据从局部视图传递到控制器？ 我知道我可以这样做：

public ActionResult NewThread(ThreadEditorView modelEditor, 
    ThreadEditorPartialView blabla, ThreadEditorSpecial zumg)

但这看起来不太方便，我想在 ThreadEditorView 中传递所有内容。

更新： 特殊视图

@model Vaniv.Core.ViewModel.Forums.ThreadEditorSpecial

        <div class="editor-label">
            @Html.LabelFor(model => model.IsSticky)
        </div>
        <div class="editor-field">
            @Html.RadioButtonFor(model => model.IsSticky, false)
            @Html.ValidationMessageFor(model => model.IsSticky)
        </div>
(some irrevalnt forms)
        <div class="editor-field">
            @Html.EditorFor(model => model.IsLocked)
            @Html.ValidationMessageFor(model => model.IsLocked)
        </div>

和编辑：

@model Vaniv.Core.ViewModel.Forums.ThreadEditorPartialView


    <legend>ThreadEditorPartialView</legend>
    @Html.HiddenFor(model => model.ForumID)
    <div class="editor-label">
        @Html.LabelFor(model => model.ThreadName)
    </div>
    <div class="editor-field">
        @Html.EditorFor(model => model.ThreadName)
        @Html.ValidationMessageFor(model => model.ThreadName)
    </div>

（某些形式，不相关）

    </div>

    <div class="editor-label">
        @Html.LabelFor(model => model.Message)
    </div>
    <div class="editor-field">
        @Html.TextAreaFor(model => model.Message)
        @Html.ValidationMessageFor(model => model.Message)
    </div>

Answer 1

我建议您使用编辑器模板而不是部分模板，因为它们会负责为您的输入字段生成正确的名称，以便模型绑定器能够正确解析 POST 操作中的值：

@using (Html.BeginForm("NewThread", "Thread", FormMethod.Post, 
    new {@enctype="multipart/form-data"})) {

    @Html.ValidationSummary(true)
    <fieldset>
        @Html.EditorFor(x => x.ThreadEditor)
        @Html.EditorFor(x => x.ThreadSpecial)
        <p>
            <input type="submit" value="Create" />
        </p>
    </fieldset>
}

并有相应的编辑器模板（注意编辑器模板的名称和位置很重要）：

~/Views/Shared/EditorTemplates/ThreadEditorPartialView.cshtml:

@model ThreadEditorPartialView
<legend>ThreadEditorPartialView</legend>
@Html.HiddenFor(model => model.ForumID)
<div class="editor-label">
    @Html.LabelFor(model => model.ThreadName)
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.ThreadName)
    @Html.ValidationMessageFor(model => model.ThreadName)
</div>

和~/Views/Shared/EditorTemplates/ThreadEditorSpecial.cshtml:

@model ThreadEditorSpecial
...

现在您的控制器操作可能看起来像这样：

public ActionResult NewThread(ThreadEditorView modelEditor) 
{ 
    ...
}

Answer 2

_ThreadEditor 和 _SpecialProperties 看起来像什么？

如果部分输入分别为ThreadEditorPartialView 和ThreadEditorSpecial，ASP.NET MVC 将使用有助于在POST 上正确绑定模型的名称呈现文本框：

_ThreadEditor：

@model ThreadEditorPartialView
// rest of the view here

_SpecialProperties：

@model ThreadEditorSpecial
// rest of the view here

使用正确键入的部分，您的操作只需采用一个参数：

public ActionResult NewThread(ThreadEditorView modelEditor) { }