Question

I have created a list of items from a database. These are shown correctly. Now i would like to save the changed booleans to my database. How can I receive all these items to my controller so i can loop through them by foreach or something?

CONTROLLER

public class ItemController : Controller
{
    private SocialGEOContext db = new SocialGEOContext();
    public ActionResult ApproveItems()
    {
        Utility ut = new Utility();
        IEnumerable<Item> items;
        items = ut.GetAllDistrictItems();
        return View(items);
    }

    [HttpPost]
    public ActionResult ApproveItems( ??? )
    {
        ???
    }

In the HttpPost i tried

    [HttpPost]
    public ActionResult ApproveItems( IEnumerable<Item> ViewItems )
    {
        foreach (Item item in ViewItems)
        {
            var testje = item.ItemTitle;
        }
        return View();
    }

But the ViewItems is empty

PAGE

@model IEnumerable<LibModels.Item> 
@{
    ViewBag.Title = "ItemsByDistrict";
}

<h2>All items from district</h2>



@using (Html.BeginForm()) {
  @Html.ValidationSummary(true)
    <fieldset>
        <table>
        @foreach (var item in Model) {
            <tr>
                <td>
                    @Html.DisplayFor(modelItem => item.ItemID)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.ItemTitle)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.ItemCreateddate)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.ItemDescription)
                </td>
                <td>
                    @Html.EditorFor(modelItem => item.ItemApproved)
                </td>
            </tr>
        }
        </table>

        <p>
            <input type="submit" value="Edit" />
        </p>
    </fieldset>
}

Answer 1

You need to use a for loop in order for the model binding to work

@for(int i; i < Model.Count; i++) {
            <tr>
                <td>
                    @Html.DisplayFor(modelItem => modelItem[i].ItemID)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => modelItem[i].ItemTitle)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => modelItem[i].ItemCreateddate)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => modelItem[i].ItemDescription)
                </td>
                <td>
                    @Html.EditorFor(modelItem => modelItem[i].ItemApproved)
                </td>
            </tr>
        }

See this article for a good breakdown on model binding collections

Note: you’ll need to call ToList() on the model so that you can use indexing

In other words in your action method:

public ActionResult ApproveItems()
    {
        Utility ut = new Utility();
        IEnumerable<Item> items;
        items = ut.GetAllDistrictItems();
        return View(items.ToList());
    }

And then change the model in the view:

@model IList<LibModels.Item>