diff --git a/EPAServeur/Context/EpContext.cs b/EPAServeur/Context/EpContext.cs
index 0cac9b8..4f37516 100644
--- a/EPAServeur/Context/EpContext.cs
+++ b/EPAServeur/Context/EpContext.cs
@@ -113,6 +113,29 @@ namespace EPAServeur.Context
                 entity.HasKey(e => e.IdCollaborateur);
             });
 
+            modelBuilder.Entity<ChoixTypeEntretien>(entity =>
+            {
+                entity.HasKey(e => e.Ordre);
+            });
+
+
+            modelBuilder.Entity<DemandeDelegation>(entity =>
+            {
+                entity.HasKey(e => e.IdDemandeDelegation);
+            });
+
+            modelBuilder.Entity<DemandeEPI>(entity =>
+            {
+                entity.HasKey(e => e.IdDemandeEPI);
+            });
+
+
+            modelBuilder.Entity<ParticipationEP>(entity =>
+            {
+                entity.HasKey(e => e.IdParticipationEP);
+            });
+
+
             modelBuilder.Entity<TypeEntretien>(entity =>
             {
                 entity.HasKey(e => e.IdTypeEntretien);
@@ -164,6 +187,8 @@ namespace EPAServeur.Context
                 entity.HasKey(e => e.IdParticipationFormation);
                 entity.Property(e => e.IdParticipationFormation).ValueGeneratedOnAdd();
                 entity.HasMany<Saisie>(e => e.Evaluation).WithOne(e => e.ParticipationFormation);
+                entity.HasOne<DemandeFormation>(e => e.DemandeFormation).WithOne(a => a.ParticipationFormation).HasForeignKey<DemandeFormation>(a => a.IdDemandeFormation);
+
             });
 
             modelBuilder.Entity<StatutFormation>(entity =>