Loop through bools and create checkboxFor

Question

These are my two classes:

public class NotifyUser : ContentPage
    {
       public NotifyUser()
       {
           Namn = "";
           Friends = new List<FriendStatus>();
       }
        public string Namn { get; set; }
        public List<FriendStatus> Friends { get; set; }

    }

   public class FriendStatus
   {
       public FriendStatus()
       {
           Name = "";
           Checked = false;
       }
       public string Name { get; set; }
       public bool Checked { get; set; }
   }

In my view I try to loop through the NotifyUser-class, displaying the name-property and add an checkboxFor/editorFor the Checked-class:

Here are two ways i´ve tried:

@foreach (var friend in Model.Friends)
        {
                @Html.Editor(frien.Name)           
                @Html.EditorFor(frien.Checked)
        }



 @for (int i = 0; i < Model.Friends.Count; i++)
        {

                <p>@Model.Friends[i].Name</p>

                @Html.CheckBoxFor(@Model.Friends[i].Checked)
         }

Both of these gives me errors, surely there must be a pretty easy way to loop throuhg a list and have a checkbox for a bool? Thank you

If you need to post you values/form back to the server, which I think you do, the second method is the correct one, i.e. using for. However, without you error message, is hard to tell what the problem is. — Andrei V
– Andrei V, Commented Aug 16, 2014 at 12:57
Yes i need to post the values back to the server, the error in the For-loop is: Argument type "bool" is not assignable to parameter type system linq expression expressions<system func<notify_core.models.NotifyUser.bool> — user2915962
– user2915962, Commented Aug 16, 2014 at 13:01

Andrei V · Accepted Answer · 2014-08-16 13:04:00Z

7

The CheckBoxFor extension method expects as parameter an expression which returns Boolean. Your example sets the Boolean. Change it like this instead:

@for (int i = 0; i < Model.Friends.Count; i++)
{
     <p>@Model.Friends[i].Name</p>

     @Html.CheckBoxFor(x => @Model.Friends[i].Checked)
}

answered Aug 16, 2014 at 13:04

Andrei V

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