Updating multiple items within same view - asp.net-mvc-3

Question

I am trying to make a stock take application, My view loads all my stock with one editor.
My controller is not getting any of the data from the view?
I want to be able to edit all my stock at the same time?
How can I do this
Model Code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace FlatSystem.Models
{
public class Stock
{
public int ID { get; set; }
public string Item_Name { get; set; }
public int Actual_Stock { get; set; }
public int Wanted_Stock { get; set; }
}
}
View Code
#model IEnumerable<FlatSystem.Models.Stock>
#using (Html.BeginForm())
{
#Html.ValidationSummary(true)
<div class="sidemenu">
<div class="sidemenu-heading">
ReStock
</div>
<div class="div-body">
<table>
<tr>
<th>
Item Name
</th>
<th>
Wanted Stock
</th>
<th>
Stock On Hand
</th>
<th></th>
</tr>
#foreach (var item in Model)
{
<tr>
<td>
#Html.DisplayFor(modelItem => item.Item_Name)
</td>
<td>
#Html.DisplayFor(modelItem => item.Wanted_Stock)
</td>
<td>
<div class="editor-field">
#Html.EditorFor(modelItem => item.Actual_Stock)
#Html.ValidationMessageFor(modelItem => item.Actual_Stock)
</div>
</td>
#Html.HiddenFor(modelItem => item.ID)
</tr>
}
</table>
</div>
</div>
<input type="submit" value="Submit" />
}
Controller Code
[HttpPost]
public ActionResult ReStock(List<Stock> stock)
{
foreach (var item in stock)
{
if (ModelState.IsValid)
{
GR.InsertOrUpdate(item);
}
}
GR.Save();
return RedirectToAction("Restock");
}

Answer 1

It's hard to answer your question without model class, but idea is that your edit inputs must contain index in name attribute.
Something like this:
#for(int i = 0: i < Model.Count(); i++)
{
<tr>
<td>
#Html.DisplayFor(modelItem => Model[i].Item_Name)
</td>
<td>
#Html.DisplayFor(modelItem => Model[i].Wanted_Stock)
</td>
<td>
<div class="editor-field">
#Html.EditorFor(modelItem => Model[i].Actual_Stock)
#Html.ValidationMessageFor(modelItem => Model[i].Actual_Stock)
</div>
</td>
#Html.HiddenFor(modelItem => Model[i].ID)
</tr>
}
Added:
Sorry, thanks to Darin Dimitrov, you can't access IEnumerable by index, use List or Array.

Answer 2

You could use editor templates. I would recommend you to first read the following article in order to understand why your code doesn't correctly bind the collection. Once you understand that you could do the following:
#model IEnumerable<FlatSystem.Models.Stock>
#using (Html.BeginForm())
{
#Html.ValidationSummary(true)
<div class="sidemenu">
<div class="sidemenu-heading">
ReStock
</div>
<div class="div-body">
<table>
<thead>
<tr>
<th>Item Name</th>
<th>Wanted Stock</th>
<th>Stock On Hand</th>
<th></th>
</tr>
</thead>
<tbody>
#Html.EditorForModel()
</tbody>
</div>
</div>
<input type="submit" value="Submit" />
}
and now define a custom editor template for the Stock type which will automatically be rendered for each element of the collection (~/Views/Shared/EditorTemplates/Stock.cshtml) - the name and location of the editor template is important as it works by convention:
#model FlatSystem.Models.Stock
<tr>
<td>
#Html.DisplayFor(x => x.Item_Name)
</td>
<td>
#Html.DisplayFor(x => x.Wanted_Stock)
</td>
<td>
<div class="editor-field">
#Html.EditorFor(x => x.Actual_Stock)
#Html.ValidationMessageFor(x => x.Actual_Stock)
</div>
</td>
#Html.HiddenFor(x => x.ID)
</tr>
Remark: You might also want to include the Wanted_Stock and Item_Name as hidden fields along with the ID in the editor template in order for their values to be sent to the server, because you don't have a corresponding input field for them.