optimise files

CS/19_5/Form1.cs

@@ -0,0 +1,47 @@
+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;
+using System.IO;
+
+namespace _19_5
+{
+    public partial class Form1 : Form
+    {
+        string[] imageURLs = Directory.GetFiles(@"C:\Users\BI\Pictures\Screenshots");
+        public Form1()
+        {
+            InitializeComponent();
+        }
+
+        private void Form1_Load(object sender, EventArgs e)
+        {
+            pictureBox1.ImageLocation = imageURLs[0];
+        }
+
+        private void button1_Click(object sender, EventArgs e)
+        {
+            pictureBox1.ImageLocation = imageURLs[button1.ImageIndex];
+            if (button1.ImageIndex > 0)
+            {
+                --button1 .ImageIndex;
+                button2 .ImageIndex = button1 .ImageIndex +1;
+            }
+        }
+
+        private void button2_Click(object sender, EventArgs e)
+        {
+            pictureBox1.ImageLocation = imageURLs[button2.ImageIndex];
+            if (button1.ImageIndex < imageList1.Images.Count -1)
+            {
+                ++button2.ImageIndex;
+                button1.ImageIndex = button2.ImageIndex - 1;
+            }
+        }
+    }
+}