MVC Retrieve Multi Entry from View in Controller

问题

this is my controller:

public ActionResult Create() {
            Number newNumber = new Number();
        return View(newNumber);
    }

and View :

@model PhoneBook.Models.Number
@{
ViewBag.Title = "Create";
}
<h2>Create</h2>
<script src="../../Scripts/jQuery.AddNewNumber.js" type="text/javascript"></script>
@using (Html.BeginForm()) {
@Html.ValidationSummary(true)
@Html.HiddenFor(model => model.Contact.Id)
<fieldset>
<legend>Number</legend>
<div class="TargetElements">
    <div class="editor-label">
        @Html.LabelFor(model => model.PhoneNumber)
    </div>
    <div class="editor-field">
        @Html.EditorFor(model => model.PhoneNumber)
        @Html.ValidationMessageFor(model => model.PhoneNumber)
    </div>
    <div class="editor-label">
        @Html.LabelFor(model => model.NumberKind)
    </div>
    <div class="editor-field">
    @Html.DropDownListFor(model => model.NumberKind.Title, NumberKinds)
    </div>
</div>
<p>
    <input class="AddNew" value="Add New" type="button" /></p>
<p>
    <input type="submit" value="Create" />
</p>
</fieldset>
}

By press AddNew button (use jQuery AddNewNumber.js) new input+DropDown Added to form in client side. But there is a problem in retrieve values, When I have one entry element(include input+DropDown) I can retrieve values like the following in post of my controller:

[HttpPost]
    public ActionResult Create(Number NewNumber, FormCollection collection) {
            db.Numbers.Add(NewNumber);
            db.SaveChanges();
            return RedirectToAction("Index")
}

But when there is multi-entry how can I retrieve values and add them to DataBase?

回答1:

Use by the name of element like this:

string[] PhoneNumbers = collection.GetValues("PhoneNumber");

回答2:

You want all of your input elements to have the same name. Then in your POST action method, the parameter would be List. Here is an example: Model Binding to a List of objects

来源：https://stackoverflow.com/questions/8164257/mvc-retrieve-multi-entry-from-view-in-controller