Question

I’m a begginer in asp.net , mvc.I try to populate a table and I receive this error :

foreach statement cannot operate on variables of type
‘K_Api.Notification’ because ‘K_Api.Notification’ does not contain a
public definition for ‘GetEnumerator’

I have a Controller and here I call my view with one parameter.This parameter is a list with data that I want to find in my grid(3 columns: from,subject,status;In my list I have 3 rows).

This is the definition for my list :

 List<Notification> sNotificationList=new List<Notification>(); //Notification is a class with the 3 columns and their types

and this is the call to my view :

return View("NotificationsList", sNotificationList);

In notificationList.aspx first row is:

<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Child.Master" Inherits="System.Web.Mvc.ViewPage<K_Api.Notification>" %>

Then I have :

      <%        
      foreach (K_Api.Notification s in Model)
        {
       %>
    <tr>
      <td> <%= Model.From %></td>
      <td> <%= Model.Status %></td>
      <td> <%= Model.Subject%></td>
   </tr> 
       <%        
     }%> 

Can somebody please tell me where is the error?

Answer 1

Your model definition in the view is wrong. You need your model to be an IEnumerable<K_Api.Notification> if you want to be able to loop through it. So modify your view in order to be conform to the type you are passing from the controller action:

<%@ Page 
    Title="" 
    Language="C#"     
    MasterPageFile="~/Views/Shared/Child.Master" 
    Inherits="System.Web.Mvc.ViewPage<IEnumerable<K_Api.Notification>>" 
%>

This obviously supposes that your controller action passes an IEnumerable<Notification> to this view:

public ActionResult NotificationsList()
{
    IEnumerable<Notification> model = new List<Notification>();
    return View(model);
}