How to initialize a list of strings (List) with many string values

Question

How is it possible to initialize (with a C# initializer) a list of strings? I have tried with the example below but it\'s not working.

List opt         


        

Answer 1

Just remove () at the end.

List<string> optionList = new List<string>
            { "AdditionalCardPersonAdressType", /* rest of elements */ };

Answer 2

List<string> facts = new List<string>() {
        "Coronavirus (COVID-19) is an illness caused by a virus that can spread from personto person.",
        "The virus that causes COVID-19 is a new coronavirus that has spread throughout the world. ",
        "COVID-19 symptoms can range from mild (or no symptoms) to severe illness",
        "Stay home if you are sick,except to get medical care.",
        "Avoid public transportation,ride-sharing, or taxis",
        "If you need medical attention,call ahead"
        };

Answer 3

Your function is just fine but isn't working because you put the () after the last }. If you move the () to the top just next to new List<string>() the error stops.

Sample below:

List<string> optionList = new List<string>()
{
    "AdditionalCardPersonAdressType","AutomaticRaiseCreditLimit","CardDeliveryTimeWeekDay"
};

Answer 4

This is how you initialize and also you can use List.Add() in case you want to make it more dynamic.

List<string> optionList = new List<string> {"AdditionalCardPersonAdressType"};
optionList.Add("AutomaticRaiseCreditLimit");
optionList.Add("CardDeliveryTimeWeekDay");

In this way, if you are taking values in from IO, you can add it to a dynamically allocated list.

Answer 5

Move round brackets like this:

var optionList = new List<string>(){"AdditionalCardPersonAdressType","AutomaticRaiseCreditLimit","CardDeliveryTimeWeekDay"};