How to loop a Console.ReadLine?

Question

I cannot figure out how to read user-input in a loop (with Console.ReadLine). I\'m trying to create a note that lets me store what ever the user inputs, and exi

Answer 1

One way to do it is this:

List simpleList = new List { "Alpha", "Bravo", "Charlie", "Delta", "Echo" }; //Dummy data source
        Console.WriteLine("Enter a call sign to find in the list. Press X to exit: "); //Prompt

        string callSign;
        string exitKey = "x";

        while ((callSign = Console.ReadLine()) != exitKey.ToLower()) { //This is where the "Magic" happens
            if (simpleList.Contains(callSign)) {
                Console.WriteLine($"\"{callSign}\" exists in our simple list");//Output should the list contain our entry
                Console.WriteLine(""); //Not really relevant, just needed to added spacing between input and output
            }
            else {
                Console.WriteLine($"\"{callSign}\" does not exist in our simple list"); //Output should the list not contain our entry
            }
            Console.WriteLine("");
            Console.WriteLine("Enter a call sign to find in the list. Press X to exit: ");//Prompt
        }

The line:

while ((callSign = Console.ReadLine()) != exitKey.ToLower()) {
      ...

is where the loop happens. If the entry does not equal the exitKey, the steps are repeated.