C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Drawing;
using System.Drawing.Design;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Drawing.Text;
using System.Windows.Forms;

namespace Osciloscope
{
    
    public class Osciloscope
    {
        int SCOPE_WIDTH, SCOPE_HEIGHT; // the width and the height of the osciloscope screen
        int SCOPE_HORIZONTAL_CENTER, SCOPE_VERTICAL_CENTER; //center point of the screen
        int SCAN_POINT_X; //number of points in the line (the width of the scope)
        int SCAN_POINT_Y; //as above but vertical (input...)
        int SCAN_POINT_X_NEW;
        int SCAN_POINT_Y_NEW;


        //Image PictureBox;
        //Graphics _Image; // get the bitmap
                                //Timer t;

        int TIMER_INTERVAL;
        Bitmap _Image;
        Graphics g;
        Pen p;

        public Osciloscope(PictureBox picture, bool Run, int Interval)
        {
            SCOPE_HEIGHT = picture.Height;
            SCOPE_WIDTH = picture.Width;
            TIMER_INTERVAL = Interval;
             //calculate mid point if the scope
            SCOPE_HORIZONTAL_CENTER = SCOPE_WIDTH / 2;
            SCOPE_VERTICAL_CENTER = SCOPE_HEIGHT / 2;
            SCAN_POINT_X = 1;// leftmost point on the screen (start scan)
            SCAN_POINT_Y = SCOPE_VERTICAL_CENTER; //the line runs in the middle of the screen

            //_Image = img;
            _Image= new Bitmap(SCOPE_HEIGHT, SCOPE_WIDTH);
            Timer t = new Timer();
            t.Tick += new EventHandler(t_Tick);
            if (Run)
            {
                t.Enabled = true;
                t.Interval = TIMER_INTERVAL;
                t.Start();
            }
            else
            {
                t.Stop();
            }

        }

        void t_Tick(object sender, EventArgs e)
        {
            g = Graphics.FromImage(_Image);
            //g.Clear(Color.Blue);
            
            p = new Pen(Color.Green, 2f);

            SCAN_POINT_X_NEW = SCAN_POINT_X + 1;
            SCAN_POINT_Y_NEW = SCAN_POINT_Y; //Math.Sin(SCAN_POINT_X);
            // draw the line
            g.DrawLine(p, SCAN_POINT_X, SCAN_POINT_Y, SCAN_POINT_X_NEW, SCAN_POINT_Y_NEW);

            //bmp = _Image;
            //DrawGraph = _Image;
            // = _scope;
            
            p.Dispose();
            g.Dispose();

            SCAN_POINT_X++;
            if(SCAN_POINT_X==SCOPE_WIDTH)
            {
                SCAN_POINT_X = 1;
            }

        }

        //private Image drawGraph
public Image DrawGraph
        {
            get
            {
                return _Image;
            }
        }
    }
}

namespace Osciloscope
{
    public partial class FrmMain : Form
    {
        public FrmMain()
        {
            InitializeComponent();
        }

        Osciloscope Osciloscope;
        private void FrmMain_Load(object sender, EventArgs e)
        {
            Osciloscope = new Osciloscope(Scope, true, 5);
            Scope.Image= Osciloscope.DrawGraph;
            //Osciloscope.Image = Scope;
            //Scope.Image = Osciloscope.Image;
           //
        }

    }
}

System.InvalidOperationException: The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine.

con.Open()
        cmd.CommandType = CommandType.Text;
        cmd.CommandText = "insert into Eleve values('" + TextBox5.Text + "','" + TextBox1.Text + "','" + TextBox2.Text + "','" + TextBox3.Text + "','" + TextBox4.Text + "','" + ComboBox1.Text + "','" + ComboBox2.Text + "','" + v + "','" + et + "','" + ComboBox5.Text + "','" + ComboBox6.Text + "')"
        cmd.Connection = con
        cmd.ExecuteNonQuery()
        con.Close()
        MessageBox.Show("l'enregistrement a reussi")
        TextBox1.Text = ""
        TextBox2.Text = ""
        TextBox3.Text = ""
        TextBox4.Text = ""
        ComboBox1.Text = ""
        ComboBox2.Text = ""
        ComboBox3.Text = ""
        ComboBox4.Text = ""
        ComboBox5.Text = ""
        ComboBox6.Text = ""

        'Catch ex As Exception

        'End Try