Récupération info com serie

Question

Bonjour, 
Je suis en train de réaliser une petite application dans laquelle je dois lire les informations d'un des ports série de l'ordinateur. voici le code que j'ai pour l'instant :
 using (var searcher = new ManagementObjectSearcher("SELECT * FROM WIN32_SerialPort"))
            {
                string[] portnames = SerialPort.GetPortNames();                
                var ports = searcher.Get().Cast<ManagementBaseObject>().ToList();                
                var tList = (from n in portnames join p in ports on n equals p["DeviceID"].ToString() select n + "-" + p["Caption"]).ToList();                        
                foreach (string s in tList)
                {
                    string[] trame = s.Split('-');                    
                    foreach (string word in trame)
                    {                       
                        if (trame[1].Substring(0, 16) == "Cypress USB UART")
                        {
                            serialPort1.PortName = trame[0];
                            label3.Text = s2 + serialPort1.PortName + s3;
                            drivecypress = 1;                           
                        }
                    }                    
                    //Driver Windows 10
                    if (trame[1].Contains("Cypress USB UART") == false) // no Cypress USB UART
                    {
                        PortName.Items.Clear();
                        foreach (string p in SerialPort.GetPortNames())
                            PortName.Items.Add(p);
                        if (PortName.Items.Count > 1)
                        {                           
                            PortName.SelectedIndex = 1;
                            PortName.Visible = true;
                            label3.Text = s7;                          
                        }
                   }
                    else PortName.Enabled = false;//PortName.Visible = false;              
                }                
            }
Mais avec ce code et suite a différent test, j'ai juste l'impression de ne récupéré aucune données dans la Tlist. Quelqu'un aurait une idée ? 
(je travaille en C#, et le but de ce début de code est d'affichée dans un menu déroulant les ports com disponible)
      EDIT : Ajout des balises de code (la coloration syntaxique).
Explications disponibles  ICI 

Merci d'y penser dans tes prochains messages.

Whismeril · Answer

Bonjour essaye ça using System; using System.Collections.Generic; using System.ComponentModel; using System.Linq; using System.Management; using System.Text; using System.Text.RegularExpressions; namespace Interface_Visibilimetre_Biral { public class PortCom :INotifyPropertyChanged { private PortCom(ManagementObject Port) { Caption = Port["Caption"].ToString(); Name = Port["Name"].ToString(); CreationClassName = Port["CreationClassName"].ToString(); Description = Port["Description"].ToString(); DeviceID = Port["DeviceID"].ToString(); Manufacturer = Port["Manufacturer"].ToString(); PNPDeviceID = Port["PNPDeviceID"].ToString(); Service = Port["Service"].ToString(); Status = Port["Status"].ToString(); SystemCreationClassName = Port["SystemCreationClassName"].ToString(); SystemName = Port["SystemName"].ToString(); CompatibleID = (string[])Port["CompatibleID"]; ConfigManagerErrorCode = (UInt32)Port["ConfigManagerErrorCode"]; ConfigManagerUserConfig = (bool)Port["ConfigManagerUserConfig"]; HardwareID = (string[])Port["HardwareID"]; } ///

/// Nom du port au format COMX ///

public string PortName { get { Match m = Regex.Match(Caption, @"$(?COM\d+)$"); if (m.Success) return m.Groups["PortName"].Value; return string.Empty; } } private string description; ///

/// Description du port ///

public string Description { get { return description; } set { if (value.MAJ(ref description)) RisePropertyChanged("Description"); } } private string caption; public string Caption { get { return caption; } set { if (value.MAJ(ref caption)) RisePropertyChanged("Caption"); } } private string name; public string Name { get { return name; } set { if (value.MAJ(ref name)) RisePropertyChanged("Name"); } } private string creationClassName; public string CreationClassName { get { return creationClassName; } set { if (value.MAJ(ref creationClassName)) RisePropertyChanged("CreationClassName"); } } private string deviceID; public string DeviceID { get { return deviceID; } set { if (value.MAJ(ref deviceID)) RisePropertyChanged("DeviceID"); } } private string manufacturer; public string Manufacturer { get { return manufacturer; } set { if (value.MAJ(ref manufacturer)) RisePropertyChanged("Manufacturer"); } } private string pNPDeviceID; public string PNPDeviceID { get { return pNPDeviceID; } set { if (value.MAJ(ref pNPDeviceID)) RisePropertyChanged("PNPDeviceID"); } } private string service; public string Service { get { return service; } set { if (value.MAJ(ref service)) RisePropertyChanged("Service"); } } private string status; public string Status { get { return status; } set { if (value.MAJ(ref status)) RisePropertyChanged("Status"); } } private string systemCreationClassName; public string SystemCreationClassName { get { return systemCreationClassName; } set { if (value.MAJ(ref systemCreationClassName)) RisePropertyChanged("SystemCreationClassName"); } } private string systemName; public string SystemName { get { return systemName; } set { if (value.MAJ(ref systemName)) RisePropertyChanged("SystemName"); } } private int availability; public int Availability { get { return availability; } set { if (value.MAJ(ref availability)) RisePropertyChanged("Availability"); } } private string[] compatibleID; public string[] CompatibleID { get { return compatibleID; } set { if (value.MAJ(ref compatibleID)) RisePropertyChanged("CompatibleID"); } } private UInt32 configManagerErrorCode; public UInt32 ConfigManagerErrorCode { get { return configManagerErrorCode; } set { if (value.MAJ(ref configManagerErrorCode)) RisePropertyChanged("ConfigManagerErrorCode"); } } private bool configManagerUserConfig; public bool ConfigManagerUserConfig { get { return configManagerUserConfig; } set { if (value.MAJ(ref configManagerUserConfig)) RisePropertyChanged("ConfigManagerUserConfig"); } } private string[] hardwareID; public string[] HardwareID { get { return hardwareID; } set { if (value.MAJ(ref hardwareID)) RisePropertyChanged("HardwareID"); } } ///

/// Retourne la liste des ports Com présents ///

public static List Liste { get { List liste = new List(); ManagementObjectSearcher requete = new ManagementObjectSearcher("root\CIMV2", "Select * FROM Win32_PnPEntity Where Caption like '%(COM%'"); foreach (ManagementObject item in requete.Get()) liste.Add(new PortCom(item)); return liste; } } #region INotifyPropertyChanged public event PropertyChangedEventHandler PropertyChanged; private void RisePropertyChanged(string Propriete) { if (this.PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs(Propriete)); } #endregion } }

Récupération info com serie

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