Bahasa C# : menggunakan open file dialog pada visual studio

berikut step stepnya dalam menggunakan open file dialog pada visual studio serta beberapa mode, seperti AutoSize,Center Image, Normal, Stretch Image, dan Zoom serta close dan clear di Visual Studio




berikut programnya gaes :

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 COBA3
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e) //open
        {
            if (openFileDialog1.ShowDialog() == DialogResult.OK)
                pictureBox1.Image = Image.FromFile(openFileDialog1.FileName);
                textBox1.Text = openFileDialog1.FileName;
        }

        private void button5_Click(object sender, EventArgs e) //auto size
        {
            pictureBox1.SizeMode = PictureBoxSizeMode.AutoSize;
        }

        private void Center_Click(object sender, EventArgs e) //center image
        {
            pictureBox1.SizeMode = PictureBoxSizeMode.CenterImage;
        }

        private void button3_Click(object sender, EventArgs e) //normal
        {
            pictureBox1.SizeMode = PictureBoxSizeMode.Normal;
        }

        private void button4_Click(object sender, EventArgs e) //Stretch
        {
            pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
        }

        private void button6_Click(object sender, EventArgs e) //zoom
        {
            pictureBox1.SizeMode = PictureBoxSizeMode.Zoom;
        }

        private void button2_Click(object sender, EventArgs e) //close
        {
            this.Close();
        }

        private void button7_Click(object sender, EventArgs e) //clear
        {
            textBox1.Clear();
            pictureBox1.Image = null;
        }
    }
}