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Model type MVC4 type null after publication

This is my model

public class AdministrationModel
{
  public string FirstName { get; set; }
  public string LastName { get; set; }
  public string EmailAddress { get; set; }
  public bool IsApproved { get; set; }
}

This is my controller

public ActionResult GetTabContent(string id)
{
  switch (id)
  {
   case "tab3":
   model = GetAllUsersInfo();
   viewName = "Administration";
   break;
   }
   return View(viewName);
 }

  private List<AdministrationModel> GetAllUsersInfo()
  {
    List<AdministrationModel> userList = new List<AdministrationModel>();
    foreach (MembershipUser user in Membership.GetAllUsers())
    {
      UserProfile userProfile = UserProfile.GetUserProfile(user.UserName);
      userList.Add(new AdministrationModel { EmailAddress = user.Email,                       IsApproved = user.IsApproved, FirstName = userProfile.FirstName, LastName = userProfile.LastName });
    }

    return userList;
  }

This is my kind

@model List<AdminContainerModel>
@using (Html.BeginForm("Administration", "Account"))
{
  <fieldset>
    <div>
      @foreach (AdministrationModel AM in Model)
      {
        <div>
         <div class="colFull">@Html.DisplayFor(modelItem => AM.FirstName)</div>
         <div class="colFull">@Html.DisplayFor(modelItem => AM.LastName)</div>
         <div class="colFull">@Html.DisplayFor(modelItem => AM.EmailAddress)</div>
         <div class="colPartial"><input type="checkbox" checked="@AM.IsApproved"/>            </div>
      <div class="clear"></div>
    </div>
  }
</div>
 <input type="submit" value="Update Account" />
 </fieldset>
}

When the user clicks the "Update Account" button, he goes to the controller

  [HttpPost]
  public ActionResult Administration(List<AdministrationModel> model)
  {
     return View();
  }

inside this method, the model is always zero. however, a performance that does everything perfectly shows what I want to show. What am I doing wrong?

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4 answers

When using collections to process them correctly so that they are attached to the model in the mail without any additional work with legs, you need to make sure that they are indexed correctly, you can do this using the for loop, for example:

@for (int i = 0; i < Model.Count; i++)
{
    @Html.HiddenFor(m => m[i].FirstName)
    @Html.HiddenFor(m => m[i].LastName)
    @Html.HiddenFor(m => m[i].EmailAddress)
    <div>
        <div class="colFull">@Html.DisplayFor(m => m[i].FirstName)</div>
        <div class="colFull">@Html.DisplayFor(m => m[i].LastName)</div>
        <div class="colFull">@Html.DisplayFor(m => m[i].EmailAddress)</div>
        <div class="colPartial">@Html.CheckBoxFor(m => m[i].IsApproved)</div>
        <div class="clear"></div>
    </div>
}

To do this, you need to bind the model without any other code :)

: , , displayFors , hiddenFors , For

Edit2: , , , - dev, :

, , hiddenFors, , - , , , , , :

@Html.HiddenFor(m => m[i].FirstName)
@Html.HiddenFor(m => m[i].LastName)
@Html.HiddenFor(m => m[i].EmailAddress)

:

@Html.HiddenFor(m => m[i].ClientId)

, , , , , .

, , , , , - :

[HttpPost]
public ActionResult Administration(List<AdministrationModel> model)
{
    var originalMatches = GetAllUsersInfo();

    var differences = (from o in originalMatches
                      join c in model on o.ClientId equals c.ClientId
                      where c.IsApproved != o.IsApproved).ToList()

    return View();
}
+10

@model , .

:

 @model TheNamespace.AdministrationModel

.

:

@Html.EditorFor(Model)

.

http://blogs.msdn.com/b/nunos/archive/2010/02/08/quick-tips-about-asp-net-mvc-editor-templates.aspx

+1

, for, foreach

0

Matty .

( , ICollection), , Xander.

The advantage is that you still get all your strong typed intellisense in the AdminContainerModel View, and MVC intercepts items back to your list to send back out of the box for you.

Here is an example:

Editor-in-chief (as Xander said):

    @model IEnumerable<AdminContainerModel>
    @using (Html.BeginForm("Administration", "Account"))
    {
      <fieldset>
        <div>
          @Html.EditorForModel()
        </div?
      </fieldset>
    }

AdminContainerModel editor template (this call is called for each item in your list because you called @ Html.EditorForModel:

@model AdminContainerModel
<div>
    <div class="colFull">@Html.DisplayFor(modelItem => AM.FirstName)</div>
    <div class="colFull">@Html.DisplayFor(modelItem => AM.LastName)</div>
    <div class="colFull">@Html.DisplayFor(modelItem => AM.EmailAddress)</div>
    <div class="colPartial"><input type="checkbox" checked="@AM.IsApproved"/>            
</div>
<div class="clear"></div>
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