"does not contain a public definition for 'GetEnumerator"

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2.50/5 (2 votes)

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I am a little confused about the IEnumerator in this case. Does it accurately depict List<class1>?

The error is in the "foreach" statement only the "foreach" is red underlined not the "item" or the "Model".

It says it "...does not contain a public definition for 'GetEnumerator...'

Index.cshtml

C#

@model IEnumerator<SimpleMVC5.Models.Class1>
        <table>
            @foreach (var item in Model)
            {
                <tr>
                    <td>@item.idt</td>
                    <td>@item.datetime</td>
                    <td>@item.col1</td>
                    <td>@item.col2</td>
                    <td>@item.col3</td>
                </tr>
            }
        </table>

HomeController.cs

C#

public class HomeController : Controller
    {
        private testContext db = new testContext();
        List<Class1> lst = new List<Class1>();
        public ActionResult Index()
        {
            lst = db.Data1.ToList();
            return View(lst);
        }

Class1.cs

C#

public class Class1
    {
        public int idt { get; set; }
        public string datetime0 { get; set; }
        public string col1 { get; set; }
        public string col2 { get; set; }
        public string col3 { get; set; }
    }
    public class testContext : DbContext
    {
        public DbSet<Class1> Data1 { get; set; }
    }

Posted 21-Jan-15 12:17pm

teledexterus

Updated 21-Jan-15 12:20pm

v2

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Sergey Alexandrovich Kryukov · Accepted Answer · 2015-01-21T12:50:00

It clearly tells you that the object Model cannot be used as a set of object for using in foreach. This is simple: the type of such object should support System.Collections.IEnumerable:
https://msdn.microsoft.com/en-us/library/system.collections.ienumerable%28v=vs.110%29.aspx[^].

Pay attention: IEnumerable, not IEnumerator! You would need to implement IEnumerator by the enumerator, the object returned by System.Collections.IEnumerable.GetEnumerator.

Yes, collections generally implement System.Collections.IEnumerable. When in doubt, look at the MSDN help page if the type in question and check it up; this detail is always shown. You did not show the type of your Model object, but it is certainly not a collection and is not derived from any collection type, but probably one of its members is of collection type, so, as in most cases, you probably still won't need to implement this interface.

—SA