如何在 C# 的 LIST<> 中动态获取用户输入的多个字段，而不像我在下面的代码中那样进行硬编码？

Question

using System;
using System.Collections.Generic;

namespace Branches
{
    public class Branch
    {
        public int Id { get; set; }
        public string Code { get; set; }
        public string Name { get; set; }  

        public Branch() { }

        public Branch(int id, string code, string name)
        {
            Id = id;
            Code = code;
            Name = name;
        }
    }

    class Program
    {
        static void Main()
        {
            List<Branch> br = new List<Branch>(){
                new Branch(){ Id=401, Code="SBI120800", Name="Chembur West" },
                new Branch(){ Id=402, Code="SBI120700", Name="Chembur East" },
                new Branch(){ Id=403, Code="SBI120900", Name="Govandi West" },
                new Branch(){ Id=404, Code="SBI120500", Name="Govandi East" },
                new Branch(){ Id=405, Code="SBI120400", Name="Andheri West" },
                new Branch(){ Id=406, Code="SBI120300", Name="Andheri East" },
            };

            foreach (var branches  in br)
            {
                Console.WriteLine(branches.Name);
            }
        }
    }
}

Answer 1

You could do something like this:

List<Branch> br = new List<Branch>();
while(true) 
{
 Console.WriteLine("Please provide Id")
 var id =  Console.ReadLine();
 ... // Ask other questions 
 br.Add( new Branch { Id =id, ...});
 Console.WriteLine("Would you like to add another branch? Y/N");
 if(Console.ReadKey().ToLower() == 'n') break;
}

Answer 2

A snippet that trims spaces, uses commas as delimiters between individual fields and newliness between different Branch objects, checks for duplicate IDs, codes, and names, and checks the code format according to the format I saw in your above code ( SBIxxxxxx ):

// This requires LINQ.
List<Branch> br = new List<Branch>(); // You can replace 'new List<Branch>()' with 'new()' if you're using C# 9.0 or newer.
while (true)
{
    Console.WriteLine("Enter the ID, code, and name of the branch, seperated by commas, or enter an empty string to finish:");
    string line = Console.ReadLine();
    if (line == String.Empty)
        break;
    string[] entry = line.Split(',');
    entry[0] = entry[0].Trim();
    entry[1] = entry[1].Trim();
    entry[2] = entry[2].Trim();
    entry[1] = entry[1].ToUpper();
    if (entry.Length != 3)
        Console.WriteLine("Incorrect number of arguments.");
    else if (!Int32.TryParse(entry[0], out int id))
        Console.WriteLine("Invalid ID entered.");
    else if (entry[2] == String.Empty)
        Console.WriteLine("Name must not be blank.");
    else if (!(entry[1].StartsWith("SBI") && Int32.TryParse(entry[1].Remove(0, 3), out int code) && code >= 100000 && code <= 999999))
        Console.WriteLine("Invalid code format.");
    else if ((from e in br
                where ((id == e.Id)
                    || (entry[1] == e.Code)
                    || (entry[2] == e.Name))
                select e).Count() > 0)
        Console.WriteLine("Duplicate ID, code, or name entered.");
    else
        br.Add(new Branch(id, entry[1], entry[2])); // Again, you can replace 'new Branch()' with 'new()' if you're using C# 9.0 or newer.
}
foreach (Branch b in br)
    Console.WriteLine(b.Name);
Console.WriteLine("Press any key to continue...");
Console.ReadKey();

If you find bugs with this code, please report them.