C#的類，構造函數以及Array陣列的數據填充與綁定

今天學習，如標題。

創建一個類，欄位屬性構造函數：



Source code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Insus.NET.Models
{
  public  class Customer
    {
        public int CustomerID { get; set; }

        public string CustomerName { get; set; }

        public string PID { get; set; }

        public Customer()
        {

        }

        public Customer(int customerId, string customerName, string pID)
        {
            CustomerID = customerId;
            CustomerName = customerName;
            PID = pID;
        }  
    }
}

接下來，我們需要準備Array數據集，方法有好幾路，每個元素的對象，由於構造函有重載，因此寫法也不一樣：
方法一：

public Customer[] ArrayCustoners()
        {
            Customer c1 = new Customer();
            c1.CustomerID = 9;
            c1.CustomerName = "張三";
            c1.PID = "123456789012";

            Customer c2 = new Customer(10, "李四", "321245677812");
            Customer c3 = new Customer() { CustomerID = 30, CustomerName = "吳廣", PID = "213445678912" };

            return new Customer[]
            {
               c1,c2,c3
            };
        }

方法二：

 public Customer[] ArrayCustoners1 = {
            new Customer(9,"張三", "123456789012"),
            new Customer(10,"李四","321245677812"),
            new Customer() { CustomerID = 30, CustomerName = "吳廣", PID = "213445678912" }
        };

方法三：

public Customer[] ArrayCustoners2()
        {
            Customer c1 = new Customer();
            c1.CustomerID = 9;
            c1.CustomerName = "張三";
            c1.PID = "123456789012";

            Customer[] array = new Customer[3];

            array[0] = c1;
            array[1] = new Customer(10, "李四", "321245677812");
            array[2] = new Customer() { CustomerID = 30, CustomerName = "吳廣", PID = "213445678912" };
            return array;
        }

方法四：

public Customer[] ArrayCustoners3()
        {
            Customer c1 = new Customer();
            c1.CustomerID = 9;
            c1.CustomerName = "張三";
            c1.PID = "123456789012";

            return new Customer[]
            {
                c1,
                new Customer(10, "李四", "321245677812"),
                new Customer() { CustomerID = 30, CustomerName = "吳廣", PID = "213445678912" }
            };
        }

也許還有其它寫法，Insus.NET暫列出四種，根據上面來看，第二種是最簡單的寫法，不過在創建類別以及其構造方法，需要重載帶參數的構造函數。