CODEWITHSUNDEEP
c#asp.net.netasp.net-mvc
Guilherme Longo
Guilherme Longo

Reputation: 2308

What is the return type of a MembershipUserCollection.GetEnumerator();

I need help understanding this

In my controller I have 

MembershipUserCollection usersObj = Membership.GetAllUsers();
IEnumerator<MembershipUserCollection> model = usersObj.GetEnumerator();
return PartialView(model );

I need an IEnumerator object to iterate through but I am not sure which type of IEnumerator MembershipUserCollection.GetEnumerator() returns.

I want to pass this IEnumerator to a view and there I´ll use this Enumerator inside of a foreach:

 @foreach (var membershipUser in Model.getEnumerator())
 { ... }

Upvotes: 0

Views: 443

Answers (3)

lante
lante

Reputation: 7336

foreach iterates throught objects that inherits from the IEnumerable interface, so if MembershipUserCollection inherits from it (and it does), you can pass it to the model and it should work.

MembershipUserCollection usersObj = Membership.GetAllUsers();
return PartialView(usersObj);

and in the view

@model System.Web.Security.MembershipUserCollection

<h2>Users</h2>
<ul>
    @foreach(var u in Model)
    {
        <li>u.UserName</li>
    }
</ul>

Upvotes: 0

Rashedul.Rubel
Rashedul.Rubel

Reputation: 3584

GetEnumerator() Returns an enumerator that iterates through a collection.

Collection must meet the following requirements:

The collection type:
    1. Must be one of the types: interface, class, or struct.
    2. Must include an instance method named GetEnumerator that returns a type, for example, Enumerator.

The type Enumerator (a class or struct) must contain:
   1. A property named Current that returns ItemType or a type that can be converted to it. The property accessor returns the current element of the collection.

for more information see the link below: http://msdn.microsoft.com/en-us/library/system.collections.ienumerable.getenumerator.aspx

Upvotes: 0

phoog
phoog

Reputation: 43046

Your question assumes incorrectly that this code works:

@foreach (var membershipUser in Model.getEnumerator()) { ... }

In fact, you should write this:

@foreach (var membershipUser in Model) { ... }

With that, your entire question becomes moot. The compiler handles the details of calling GetEnumerator, and, as you've used the var keyword, it infers the type of the loop variable, too.

Upvotes: 4

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