如何将项目从组合框添加到列表集合

Question

I've got a combo box with a few strings. I would like to add those string to a List collection. Is this the correct way of doing it?

List<string> comboItems = new List<string>();

foreach(string passItems in comboEmail.Items)
{
    comboItems.Add(passItems);
}

Answer 1

略有不同的方式：

List<string> comboItems = comboEmail.Items.Cast<string>().ToList();

Answer 2

That is a perfectly valid approach.

You can also cast to string and use AddRange to create a one-liner.

comboItems.AddRange(cb.comboEmail.Cast<string>());

Answer 3

Your approach is simple enough. Use it.

Sometimes simple foreach statement with one line code inside
will be more readable then nice looking one line LINQ code.

Anyway both versions will be doing almost same work. LINQ can be even slowly then foreach