diff --git a/Code/IHM/App.xaml.cs b/Code/IHM/App.xaml.cs
index c799256..87723ac 100644
--- a/Code/IHM/App.xaml.cs
+++ b/Code/IHM/App.xaml.cs
@@ -15,7 +15,7 @@ namespace IHM
     /// </summary>
     public partial class App : Application
     {
-        public Manager AllInscrits { get; private set; } = new Manager(new LinqToPgSQL.PersLinqToPgSQL());
+        public Manager Manager { get; private set; } = new Manager(new LinqToPgSQL.PersLinqToPgSQL());
         //public Manager AllInscrits { get; private set; } = new Manager(new Stub());
 
     }
diff --git a/Code/IHM/MainWindow.xaml b/Code/IHM/MainWindow.xaml
index 4a745ad..ecdd3d5 100644
--- a/Code/IHM/MainWindow.xaml
+++ b/Code/IHM/MainWindow.xaml
@@ -7,7 +7,12 @@
         mc:Ignorable="d"
         Title="MainWindow" Height="450" Width="800">
     <Grid>
-        <Button x:Name="test2" Content="Button" HorizontalAlignment="Left" Margin="411,167,0,0" VerticalAlignment="Top" Click="test_Click"/>
+        <TextBlock Name="idpers" Text="null"/>
+        <StackPanel Orientation="Horizontal" HorizontalAlignment="Center">
+            <TextBox Name="id" Height="100" Width="200" Text="OUIOUIOUI"/>
+            <TextBox Name="mdp" Height="100" Width="200" Text="OUIOUIOUI"/>
+        </StackPanel>
+        <Button x:Name="test2" Content="Button" HorizontalAlignment="Center" Margin="0,320,0,0" VerticalAlignment="Top" Click="test_Click"/>
 
 
     </Grid>
diff --git a/Code/IHM/MainWindow.xaml.cs b/Code/IHM/MainWindow.xaml.cs
index 1bcdaec..d13c1f7 100644
--- a/Code/IHM/MainWindow.xaml.cs
+++ b/Code/IHM/MainWindow.xaml.cs
@@ -22,40 +22,21 @@ namespace IHM
     /// </summary>
     public partial class MainWindow : Window
     {
-        public Manager ListedesInscrits => ((App)Application.Current).AllInscrits;
+        public Manager Manager => ((App)Application.Current).Manager;
    
         public MainWindow()
         {
             InitializeComponent();
-
-            ListedesInscrits.LoadInscrit();
-            DataContext = ListedesInscrits;
-            
+            DataContext = Manager.SelectedInscrits;
         }
 
         public void testSelect()
         {
-            foreach (Inscrit i in ListedesInscrits.ListedesInscrits)
-            {
-                
-                
-                 MessageBox.Show($"{i.Id} + {i.Nom} + {i.Prenom} + {i.Mail} + {i.Mdp}");
-                
-                
-            }
-            
+                 MessageBox.Show($"{Manager.SelectedInscrits}");
         }
 
         public void testSuppression()
         {
-            foreach (Inscrit i in ListedesInscrits.ListedesInscrits)
-            {
-                if (i.Nom == "YOUVOI")
-                {
-                    ListedesInscrits.supprimerInscritBdd(i);
-                }
-
-            }
             MessageBox.Show("Suppression ok");
         }
 
@@ -75,9 +56,13 @@ namespace IHM
 
         private void test_Click(object sender, RoutedEventArgs e)
         {
-            // testSelect();
-            // testSuppression();
-            testSupressionBanqueBdd();
+            Manager.LoadInscrit(id.Text,mdp.Text);
+            if (Manager.SelectedInscrits != null)
+            {
+                idpers.Text = Manager.SelectedInscrits;
+                testSelect();
+            }
+            else idpers.Text = "";
         }
 
     }
diff --git a/Code/LinqToPgSQL/PersLinqToPgSQL.cs b/Code/LinqToPgSQL/PersLinqToPgSQL.cs
index 77239b3..330c4b1 100644
--- a/Code/LinqToPgSQL/PersLinqToPgSQL.cs
+++ b/Code/LinqToPgSQL/PersLinqToPgSQL.cs
@@ -3,6 +3,8 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using System.Data;
+using System.Configuration;
 using Npgsql;
 using Model;
 using System.IO;
@@ -14,49 +16,31 @@ namespace LinqToPgSQL
 {
     public class PersLinqToPgSQL : IPersistanceManager
     {
-        private static string Host = "90.114.135.116";
-        private static string User = "postgres";
-        private static string DBname = "conseco";
-        private static string Password = "lulu";
-        private static string Port = "5432";
-
-        string connString =
-                String.Format(
-                    "Server={0};Username={1};Database={2};Port={3};Password={4};SSLMode=Prefer",
-                    Host,
-                    User,
-                    DBname,
-                    Port,
-                    Password);
-
-        public PersLinqToPgSQL() { }
-        public IEnumerable<Inscrit> LoadInscrit()
+        string connexionBDD = String.Format("Server=90.114.135.116; Username=postgres; Database=conseco; Port=5432; Password=lulu; SSLMode=Prefer");
+        public string LoadInscrit(string id, string mdp)
         {
-            List<Inscrit> ListeInscrits = new List<Inscrit>();
-
-            var conn = new NpgsqlConnection(connString);
-            Console.Out.WriteLine("Ouverture de la connection"); 
+            string resultat="";
+            var conn = new NpgsqlConnection(connexionBDD);
+            Console.Out.WriteLine("Ouverture de la connection");
+            conn.Open();
+            NpgsqlParameter p1 = new NpgsqlParameter { ParameterName = "p", Value = id };
+            NpgsqlParameter p2 = new NpgsqlParameter { ParameterName = "p2", Value = mdp };
+            NpgsqlCommand cmd = new NpgsqlCommand($"SELECT id FROM INSCRIT WHERE (nom=(@p) OR mail=(@p)) AND mdp=@p2", conn);
+            cmd.Parameters.Add(p1);
+            cmd.Parameters.Add(p2);
+            NpgsqlDataReader dr = cmd.ExecuteReader();
             try
             {
-                conn.Open();
-            }
-            catch
-            {
-                conn.Close();
-                
-                MessageBox.Show("Problème de connection à la base de données. L'application se fermera après fermeture de la fenêtre");
-                Environment.Exit(0);
-               
+                dr.Read();
+                resultat = dr.GetString(0);
+                dr.Close();
+                return resultat;
             }
-            
-            
-            NpgsqlDataReader dbReader = new NpgsqlCommand("SELECT * FROM Inscrit", conn).ExecuteReader();
-
-            while (dbReader.Read())
+            catch (Exception ex)
             {
-
-                ListeInscrits.Add(new Inscrit(dbReader.GetString(0), dbReader.GetString(1), dbReader.GetString(2), dbReader.GetString(3), dbReader.GetString(4)));
-                
+                MessageBox.Show(ex+"Utilisateur inconnu");
+                dr.Close();
+                return "null";//a changer doit retester
             }
             
 
@@ -140,8 +124,9 @@ namespace LinqToPgSQL
         /*Suppression d'un inscrit dans la base de données*/
         public async void SupprimerInscritBdd(Inscrit i)
         {
-           
-            var conn = new NpgsqlConnection(connString);
+            /*List<Inscrit> ListeInscrits = new List<Inscrit>(LoadInscrit());*/
+
+            var conn = new NpgsqlConnection(connexionBDD);
             Console.Out.WriteLine("Ouverture de la connection");
             try
             {
@@ -156,8 +141,8 @@ namespace LinqToPgSQL
 
 
             string requete = $"DELETE FROM INSCRIT WHERE id=(@p)";
-
-            using (var command1 = new NpgsqlCommand(requete, conn))
+            string requeteFKey = $"DELETE FROM DEVISEINSCRIT WHERE idInscrit=(@p2)";
+            using (var command1 = new NpgsqlCommand(requeteFKey, conn))
             {
                 command1.Parameters.AddWithValue("p", i.Id);
                 await command1.ExecuteNonQueryAsync();
@@ -189,8 +174,8 @@ namespace LinqToPgSQL
             string requete = $"DELETE * FROM BANQUE b, INSCRBANQUE ib WHERE b.nom=ib.nomBanque AND ib.idInscrit=(@id)";
             using (var command1 = new NpgsqlCommand(requete, conn))
             {
-                command1.Parameters.AddWithValue("id", i.Id.ToString());
-                await command1.ExecuteNonQueryAsync();
+                command.Parameters.AddWithValue("p", i.Id);
+                await command.ExecuteNonQueryAsync();
             }
         }
 
diff --git a/Code/Model/IPersistanceManager.cs b/Code/Model/IPersistanceManager.cs
index 8ac0500..d313124 100644
--- a/Code/Model/IPersistanceManager.cs
+++ b/Code/Model/IPersistanceManager.cs
@@ -8,8 +8,7 @@ namespace Model
 {
     public interface IPersistanceManager
     {
-        IEnumerable<Inscrit> LoadInscrit();
-        IEnumerable<Banque> LoadBanque();
+        string LoadInscrit(string id,string mdp);
         void SupprimerInscritBdd(Inscrit inscrit);
         void SupprimerBanqueBdd(Inscrit inscrit, Banque banque);
         void SupprimerToutesBanquesBdd(Inscrit inscrit);
diff --git a/Code/Model/Manager.cs b/Code/Model/Manager.cs
index e24f18f..af552e5 100644
--- a/Code/Model/Manager.cs
+++ b/Code/Model/Manager.cs
@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.ComponentModel;
 using System.Linq;
+using Npgsql;
 using System.Text;
 using System.Threading.Tasks;
 
@@ -10,31 +11,9 @@ namespace Model
 {
     public class Manager : INotifyPropertyChanged
     {
-        public Manager() { }
-
         public event PropertyChangedEventHandler? PropertyChanged;
-
-        public IReadOnlyCollection<Inscrit> ListedesInscrits { get; private set; }
-        private List<Inscrit> TousLesInscrits { get; set; } = new List<Inscrit>();
-        public IReadOnlyCollection<Banque> ListeDesBanques { get; private set; }
-        private List<Banque> TouteLesBanques { get; set; } = new List<Banque>();
-
         public IPersistanceManager Pers { get; private set; }
-
-
-        public Inscrit SelectedInscrits
-        {
-            get => selectedInscrits;
-            set
-            {
-                if (selectedInscrits != value)
-                {
-                    selectedInscrits = value;
-                    OnPropertyChanged(nameof(SelectedInscrits));
-                }
-            }
-        }
-        private Inscrit selectedInscrits;
+        public string SelectedInscrits;
 
         public Banque SelectedBanque
         {
@@ -52,39 +31,19 @@ namespace Model
 
         void OnPropertyChanged(string propertyName) => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
 
-
-        public void LoadInscrit()
-        {
-            TousLesInscrits.Clear();
-            TousLesInscrits.AddRange(Pers.LoadInscrit());
-            if (TousLesInscrits.Count > 0)
-                SelectedInscrits = TousLesInscrits.First();
-
-        }
-
-        public void LoadBanque()
-        {
-            TouteLesBanques.Clear();
-            TouteLesBanques.AddRange(Pers.LoadBanque());
-            if (TouteLesBanques.Count > 0)
-                SelectedBanque = TouteLesBanques.First();
-        }
-
         public Manager(IPersistanceManager persistance)
         {
-            ListedesInscrits = new ReadOnlyCollection<Inscrit>(TousLesInscrits);
-            ListeDesBanques = new ReadOnlyCollection<Banque>(TouteLesBanques);
             Pers = persistance;
         }
 
-        public void supprimerInscritBdd(Inscrit inscrit)
+        public void SupprimerInscritBdd(Inscrit i)
         {
             Pers.SupprimerInscritBdd(inscrit);
         }
 
-        public void supprimerBanqueBdd(Inscrit inscrit, Banque banque)
+        public void LoadInscrit(string id, string mdp)
         {
-            Pers.SupprimerBanqueBdd(inscrit, banque);
+            SelectedInscrits = Pers.LoadInscrit(id, mdp);
         }
 
         public void supprimerToutesBanquesBdd(Inscrit inscrit)
diff --git a/Code/Model/Model.csproj b/Code/Model/Model.csproj
index bafd05b..1fb252d 100644
--- a/Code/Model/Model.csproj
+++ b/Code/Model/Model.csproj
@@ -6,4 +6,8 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Npgsql" Version="6.0.7" />
+  </ItemGroup>
+
 </Project>
diff --git a/Code/TestsUnitaires/TestUnitCompte.cs b/Code/TestsUnitaires/TestUnitCompte.cs
index 739b9f7..2a152c8 100644
--- a/Code/TestsUnitaires/TestUnitCompte.cs
+++ b/Code/TestsUnitaires/TestUnitCompte.cs
@@ -1,35 +1,35 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using Model;
-
-namespace TestsUnitaires
-{
-    public class TestUnitCompte
-    {
-        [Fact]
-        public void TestConstructeurCompte()
-        {
-            Compte c1 = new("Livret A", 234);
-            Compte c2 = new("&e23R_te7", 1245.34);
-            Assert.Equal("Livret A", c1.Nom);
-            Assert.Equal("&e23R_te7", c2.Nom);
-            Assert.Equal(234, c1.Solde);
-            Assert.Equal(1245.34, c2.Solde);
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Model;
+
+namespace TestsUnitaires
+{
+    public class TestUnitCompte
+    {
+        [Fact]
+        public void TestConstructeurCompte()
+        {
+            Compte c1 = new("Livret A", 234);
+            Compte c2 = new("&e23R_te7", 1245.34);
+            Assert.Equal("Livret A", c1.Nom);
+            Assert.Equal("&e23R_te7", c2.Nom);
+            Assert.Equal(234, c1.Solde);
+            Assert.Equal(1245.34, c2.Solde);
         }
 
-        [Fact]
-        public void testSupprimerBanque()
-        {
-            Banque bq = new Banque("Crédit Agricole", "https://creditagricole.fr", "https://yt3.ggpht.com/a/AGF-l7_mEfX2eQaGm8GefLOg5ZMRciNw-pESE3gUWg=s900-c-k-c0xffffffff-no-rj-mo");
-            Inscrit i1 = new Inscrit("A1001", "Smith", "smith@gmail.com", "luke", "test", 500);
-            Assert.NotNull(i1.LesBanques);
-            i1.ajouterBanque(bq);
-            Assert.Contains(bq, i1.LesBanques);
-            i1.SupprimerBanque(bq);
+        [Fact]
+        public void testSupprimerBanque()
+        {
+            Banque bq = new Banque("Crédit Agricole", "https://creditagricole.fr", "https://yt3.ggpht.com/a/AGF-l7_mEfX2eQaGm8GefLOg5ZMRciNw-pESE3gUWg=s900-c-k-c0xffffffff-no-rj-mo");
+            Inscrit i1 = new Inscrit("A1001", "Smith", "smith@gmail.com", "luke", "test", 500);
+            Assert.NotNull(i1.LesBanques);
+            i1.ajouterBanque(bq);
+            Assert.Contains(bq, i1.LesBanques);
+            i1.SupprimerBanque(bq);
             Assert.DoesNotContain(bq, i1.LesBanques);
-        }
-    }
-}
+        }
+    }
+}