このblog postには、ステップバイステップガイドが記載されています。
UPDATE：私はあなたのシナリオに上記の記事を適合させる方法をステップバイステップを説明していますコメント欄で要求されるように
。
モデル：
public class MyOtherModelObject
{
public string Name { get; set; }
public string Description { get; set; }
}
public class MyModelObject
{
public int Id { get; set; }
public string Name { get; set; }
public string Description { get; set; }
public List<MyOtherModelObject> OtherModelObjects { get; set; }
}
コントローラー：
public class HomeController : Controller
{
public ActionResult Index()
{
var model = new MyModelObject
{
Id = 1,
Name = "the model",
Description = "some desc",
OtherModelObjects = new[]
{
new MyOtherModelObject { Name = "foo", Description = "foo desc" },
new MyOtherModelObject { Name = "bar", Description = "bar desc" },
}.ToList()
};
return View(model);
}
[HttpPost]
public ActionResult Index(MyModelObject model)
{
return Content("Thank you for submitting the form");
}
public ActionResult BlankEditorRow()
{
return PartialView("EditorRow", new MyOtherModelObject());
}
}
ビュー（~/Views/Home/Index.cshtml）：
@model MyModelObject
@using(Html.BeginForm())
{
@Html.HiddenFor(x => x.Id)
<div>
@Html.LabelFor(x => x.Name)
@Html.EditorFor(x => x.Name)
</div>
<div>
@Html.LabelFor(x => x.Description)
@Html.TextBoxFor(x => x.Description)
</div>
<hr/>
<div id="editorRows">
@foreach (var item in Model.OtherModelObjects)
{
@Html.Partial("EditorRow", item);
}
</div>
@Html.ActionLink("Add another...", "BlankEditorRow", null, new { id = "addItem" })
<input type="submit" value="Finished" />
}
部分（~/Views/Home/EditorRow.cshtml）：
@model MyOtherModelObject
<div class="editorRow">
@using (Html.BeginCollectionItem("OtherModelObjects"))
{
<div>
@Html.LabelFor(x => x.Name)
@Html.EditorFor(x => x.Name)
</div>
<div>
@Html.LabelFor(x => x.Description)
@Html.EditorFor(x => x.Description)
</div>
<a href="#" class="deleteRow">delete</a>
}
</div>
スクリプト：
$('#addItem').click(function() {
$.ajax({
url: this.href,
cache: false,
success: function (html) {
$('#editorRows').append(html);
}
});
return false;
});
$('a.deleteRow').live('click', function() {
$(this).parents('div.editorRow:first').remove();
return false;
});
備考：BeginCollectionItemカスタムヘルパーは、私がリンクした同じ記事から取られているが、私は答えの完全性を期すためにここでそれを提供しています：
public static class HtmlPrefixScopeExtensions
{
private const string idsToReuseKey = "__htmlPrefixScopeExtensions_IdsToReuse_";
public static IDisposable BeginCollectionItem(this HtmlHelper html, string collectionName)
{
var idsToReuse = GetIdsToReuse(html.ViewContext.HttpContext, collectionName);
string itemIndex = idsToReuse.Count > 0 ? idsToReuse.Dequeue() : Guid.NewGuid().ToString();
// autocomplete="off" is needed to work around a very annoying Chrome behaviour whereby it reuses old values after the user clicks "Back", which causes the xyz.index and xyz[...] values to get out of sync.
html.ViewContext.Writer.WriteLine(string.Format("<input type=\"hidden\" name=\"{0}.index\" autocomplete=\"off\" value=\"{1}\" />", collectionName, html.Encode(itemIndex)));
return BeginHtmlFieldPrefixScope(html, string.Format("{0}[{1}]", collectionName, itemIndex));
}
public static IDisposable BeginHtmlFieldPrefixScope(this HtmlHelper html, string htmlFieldPrefix)
{
return new HtmlFieldPrefixScope(html.ViewData.TemplateInfo, htmlFieldPrefix);
}
private static Queue<string> GetIdsToReuse(HttpContextBase httpContext, string collectionName)
{
// We need to use the same sequence of IDs following a server-side validation failure,
// otherwise the framework won't render the validation error messages next to each item.
string key = idsToReuseKey + collectionName;
var queue = (Queue<string>)httpContext.Items[key];
if (queue == null)
{
httpContext.Items[key] = queue = new Queue<string>();
var previouslyUsedIds = httpContext.Request[collectionName + ".index"];
if (!string.IsNullOrEmpty(previouslyUsedIds))
foreach (string previouslyUsedId in previouslyUsedIds.Split(','))
queue.Enqueue(previouslyUsedId);
}
return queue;
}
private class HtmlFieldPrefixScope : IDisposable
{
private readonly TemplateInfo templateInfo;
private readonly string previousHtmlFieldPrefix;
public HtmlFieldPrefixScope(TemplateInfo templateInfo, string htmlFieldPrefix)
{
this.templateInfo = templateInfo;
previousHtmlFieldPrefix = templateInfo.HtmlFieldPrefix;
templateInfo.HtmlFieldPrefix = htmlFieldPrefix;
}
public void Dispose()
{
templateInfo.HtmlFieldPrefix = previousHtmlFieldPrefix;
}
}
}
http://haacked.com/archive/2008/10/23/model-binding-to-a-list.aspx（Razorの構文もMVC4の可能性もありますがアイデア） –
一見すると。それはリストのために働くように見えますが、別のオブジェクトの一部であるListに対しても機能し、モデルをバインドできますか？ – DaveH