Remove an item from an IEnumerable collection

Question

I have a popuplated IEnumerable collection.

I want to remove an item from it, how can I do this?

foreach(var u in users)
{
          


        

Answer 1

Not removing but creating a new List without that element with LINQ:

// remove
users = users.Where(u => u.userId != 123).ToList();

// new list
var modified = users.Where(u => u.userId == 123).ToList();