The code below fails, and I guess it's cause the Remove()-method is ruining the loop order. But how do I fix it?
List<string> test = new List<string>();
List<string> test2 = new List<string>();
test.Add("test");
test.Add("test");
test.Add("test");
test.Add("test");
foreach(string t in test)
{
test2.Add(t);
test.Remove(t);
}
You are right about the problem, the solution is to iterate over a copy instead of the actual list
foreach(string t in test.ToList())
{
test2.Add(t);
test.Remove(t);
}
BTW, you can do what you want without using any loop:
test2.AddRange(test);
test.Clear();
It fails because foreach iteration variables or read-only.
One way to work around the error is to change the foreach loop to a for loop, starting the loop from the last element so as to not mess up the order if you remove an element.
