C# extension method to get list of string from list of customObject

class Pers开发者_C百科on
{
    string Name
}

With a List<Person> persons, what's the extension method to get List<string> object with each person's Name?

If you really need a List<string>, then you can use:

persons.Select(p => p.Name).ToList();

But if you only need to enumerate over the values, you can drop the ToList():

persons.Select(p => p.Name);

using an extention method:

static class PersonListExtensions
{
    public static List<string> ToStringList( this List<Person> persons)
    {
        return persons.Select(p=>p.Name).ToList();
    }
}