diff --git a/CanYouBuildIt/App.xaml.cs b/CanYouBuildIt/App.xaml.cs
index d68e64b..6749519 100644
--- a/CanYouBuildIt/App.xaml.cs
+++ b/CanYouBuildIt/App.xaml.cs
@@ -8,9 +8,15 @@ public partial class App : Application
 	public Manager manager { get; private set; } = new Manager(new Stub());
 	public App()
 	{
-		manager.chargeDonne();
-		//manager.Persi = new DataContractPersistance.DataContractPers();
-		//manager.sauvegardeDonnee();
+		string appDirectory = AppContext.BaseDirectory;
+		int sousDossier = 53;
+		appDirectory = appDirectory.Substring(0, appDirectory.Length - sousDossier);
+		Directory.SetCurrentDirectory(appDirectory);
+		Debug.WriteLine("Directory");
+        Debug.WriteLine(Directory.GetCurrentDirectory());
+        manager.chargeDonne();
+		manager.Persi = new DataContractPersistance.DataContractPers();
+		manager.sauvegardeDonnee();
 		Debug.WriteLine(manager.listUtil[0]);
 		InitializeComponent();
 
diff --git a/CanYouBuildIt/DataContractPersistance/DataContractPers.cs b/CanYouBuildIt/DataContractPersistance/DataContractPers.cs
index e26cbde..0f3ec47 100644
--- a/CanYouBuildIt/DataContractPersistance/DataContractPers.cs
+++ b/CanYouBuildIt/DataContractPersistance/DataContractPers.cs
@@ -34,8 +34,9 @@ namespace CanYouBuildIt.DataContractPersistance
         public void sauvegardeDonnee(List<Utilisateur> lu, List<Composant> lc)
         {
             var serializer = new DataContractSerializer (typeof(DataToPersist));
+            //Debug.WriteLine(Directory.GetCurrentDirectory());
+            Debug.WriteLine("Directory de sauvegarde");
             Debug.WriteLine(Directory.GetCurrentDirectory());
-
             if (!Directory.Exists(FilePath))
             {
                 
diff --git a/CanYouBuildIt/Model/Composant.cs b/CanYouBuildIt/Model/Composant.cs
index 53ae5a9..9277186 100644
--- a/CanYouBuildIt/Model/Composant.cs
+++ b/CanYouBuildIt/Model/Composant.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Runtime.Serialization;
 using System.Text;
 using System.Threading.Tasks;
 
@@ -20,11 +21,16 @@ namespace CanYouBuildIt.Model
         HDD
     }
 
+    [DataContract]
     public class Composant
     {
+        [DataMember]
         public string id { get; private set; }
+        [DataMember]
         public TypeComposant type { get; private set; }
+        [DataMember]
         public float prix { get; private set; }
+        [DataMember]
         public string lien { get; private set; }