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 |  public partial class Form1 : Form
    {
        private List<Recette> recettes = new List<Recette>();
 
        public Form1()
        {
            InitializeComponent();
        }
 
        private void LoadBtn_Click(object sender, EventArgs e)
        {
            LoadValues();
            DisplayValues();
        }
 
        private void DisplayValues()
        {
            courbe.Series.Clear();
            courbe.ChartAreas.Clear();
 
            foreach (Recette rec in recettes)
            {
                ChartArea area = courbe.ChartAreas.Add(rec.Name);
                //area.BackColor = Color.LightBlue;
                //area.BackColor = Color.Green;
                area.BorderColor = Color.Red;
                area.BorderWidth = 4;                
 
                foreach (Series s in rec.Series)
                {
                    s.ChartArea = rec.Name;
                    courbe.Series.Add(s);
                }
            }
        }
 
        private void LoadValues()
        {
            string path = Application.StartupPath + @"\texttest.txt";
            Recette curRecette = null;
            Series curSerie = null;
            DateTime curTime = DateTime.Now;
            int recIndex = 1;
            int serIndex = 1;
 
            if (File.Exists(path))
            {
                TextReader tx = new StreamReader(path);
                string ligne = string.Empty;
                while ((ligne = tx.ReadLine()) != null)
                {
                    int pos = ligne.IndexOf(":");
                    string commande = ligne.Substring(0, pos);
                    string value = ligne.Substring(pos + 1);
                    switch (commande)
                    {
                        case "Custom Name":
                            if (curRecette != null)
                            {
                                recettes.Add(curRecette);
                            }
 
                            curRecette = new Recette();
                            break;
 
                        case "File Name":
                            curRecette.Name = recIndex.ToString() + " " + value;
                            recIndex++;
                            break;
 
                        case "Start":
                            curRecette.Start = DateTime.Parse(value);
                            break;
 
                        case "End":
                            curRecette.End = DateTime.Parse(value);
                            break;
 
                        case "Curve Name":
                            if (curSerie != null)
                            {
                                curRecette.Series.Add(curSerie);
                            }
                            curSerie = new Series();
                            curSerie.XValueType = ChartValueType.Time;
                            curSerie.YValueType = ChartValueType.Double;
                            curSerie.ChartType = SeriesChartType.Line;
                            curSerie.Name = serIndex.ToString() + " " +  value;
                            serIndex++;
                            break;
                        case "Time":
                            curTime = DateTime.Parse(value);
                            break;
                        case "Data":
                            curSerie.Points.AddXY(curTime, Double.Parse(value));
                            break;
 
                        default:
                            break;
                    }
                }
            }
            else
            {
                MessageBox.Show("Impossible de trouver le fichier de données");
            }
        }
 
        private void courbe_Click(object sender, EventArgs e)
        {
 
        }
 
       // rajout
        private void Zoom_Click(object sender, EventArgs e)
        {
            this.courbe.ChartAreas.FindByName("ChartArea1").RecalculateAxesScale();
            //this.courbe.PrimaryXAxis.SmartDateZoomDayLevelLabelFormat = "dd MM/yy HH.00";
            this.courbe.ChartAreas.FindByName("ChartArea1").AxisX.ScaleView.ZoomReset();
        }
       //fin rajout
    }
 
 
    public class Recette
    {
        private string  name;
        private DateTime start;
        private DateTime end;
        private List<Series> series = new List<Series>();
 
        public List<Series> Series
        {
            get { return series; }
            set { series = value; }
        }
 
        public DateTime End
        {
            get { return end; }
            set { end = value; }
        }
 
        public DateTime Start
        {
            get { return start; }
            set { start = value; }
        }
 
        public string  Name
        {
            get { return name; }
            set { name = value; }
        } | 
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