using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WinFormPolymorphism5
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        // 宣告Control類別的參考物件變數objToMove
        Control objToMove;

        // 表單載入時執行
        private void Form1_Load(object sender, EventArgs e)
        {
              objToMove = comboBox1; // objToMove參考指向comboBox1
        }

        // 按一下comboBox1時執行
        private void comboBox1_Click(object sender, EventArgs e)
        {
               objToMove = comboBox1; // objToMove參考指向comboBox1
        }

        // 按一下button1時執行
        private void button1_Click(object sender, EventArgs e)
        {
              objToMove = button1; // objToMove參考指向button1
        }
        // 按一下linkLabel1時執行
        private void linkLabel1_Click(object sender, EventArgs e)
        {
               objToMove = linkLabel1; // objToMove參考指向linkLabel1
        }
        // 按一下checkBox1時執行
        private void checkBox1_Click(object sender, EventArgs e)
        {
                objToMove = checkBox1; // objToMove參考指向checkBox1
        }
        // 按一下btnMove1(向右移動鈕)時執行
        private void btnMove_Click(object sender, EventArgs e)
        {
                // 目前objToMove參考指向的控制項往右移動 10 Pixel
                objToMove.Left += 10;
        }
    }
}