Help with foreach, getting 'possible multiple enumeration of IEnumerable'

Question

Trying to do a foreach:

foreach(User in userList)
{

}

Where userList is a IEnumerable<User> userList

I tried doing: userList.ToList() but I get the same message.

Answer 1

In your foreach statement, you haven't specified an identifier for the current instance of User. Try adding an identifier (e.g., currUser or just user) after the type User, like this:

foreach(User user in userList)
{

}

Answer 2

the other answers showed you your syntax problem, but some tool (I think resharper) will warn you that you might enumerate the sequence more than once (maybe even VS - don't know because I use them together). If that is the problem write something like

var userArray = userList.ToArray();

and use userArray instead of userList

Answer 3

It should be:

foreach(User user in userList)
{

}

Answer 4

A foreach loop requires you to define a variable to place each iteration in. You have only defined the class and are missing the variable.

foreach(User _user in userList)
{

}