diff --git a/Sources/Persistance/DataContractSerializer.cs b/Sources/Persistance/DataContractSerializer.cs
index 54cd379..2faf35e 100644
--- a/Sources/Persistance/DataContractSerializer.cs
+++ b/Sources/Persistance/DataContractSerializer.cs
@@ -10,6 +10,25 @@ namespace Persistance
 {
     public class DataContractSerializer
     {
+        public Theque DataContractSerializer() 
+        {
+            Theque theque = new Theque();
 
+            Directory.SetCurrentDirectory(Path.Combine(Directory.GetCurrentDirectory()));
+            string xmlFile = "theque.xml";
+
+            var serializer = new DataContractSerializer(typeof(Theque));
+
+            using (Stream s = File.Create(xmlFile))
+            {
+                serializer.WriteObject(s, theque);
+            }
+
+            Theque theque2;
+            using (Stream s = File.OpenRead(xmlFile))
+            {
+                theque2 = serializer.ReadObject(s) as Theque;
+            }
+        }
     }
 }
\ No newline at end of file