diff --git a/Webzine.Repository/DbStyleRepository.cs b/Webzine.Repository/DbStyleRepository.cs
index 0412a90..57f42f3 100644
--- a/Webzine.Repository/DbStyleRepository.cs
+++ b/Webzine.Repository/DbStyleRepository.cs
@@ -94,7 +94,6 @@ public class DbStyleRepository : IStyleRepository
             this.logger.LogDebug("Recherche du style avec l'ID: {Id}", id);
 
             var style = this.context.Styles
-                .AsNoTracking()
                 .Include(s => s.Titres)
                 .SingleOrDefault(s => s.IdStyle == id);
 
@@ -123,7 +122,6 @@ public class DbStyleRepository : IStyleRepository
             this.logger.LogDebug("Tri des styles par libellé");
 
             var styles = this.context.Styles
-                .AsNoTracking()
                 .OrderBy(s => s.Libelle);
 
             this.logger.LogDebug("La liste de styles a été récupérée.");
diff --git a/Webzine.WebApplication/Areas/Administration/Controllers/ArtisteController.cs b/Webzine.WebApplication/Areas/Administration/Controllers/ArtisteController.cs
index c68e99e..4d4311a 100644
--- a/Webzine.WebApplication/Areas/Administration/Controllers/ArtisteController.cs
+++ b/Webzine.WebApplication/Areas/Administration/Controllers/ArtisteController.cs
@@ -97,12 +97,15 @@ public class ArtisteController : Controller
     [HttpPost]
     public IActionResult Edit(ArtisteEditViewModel model)
     {
-        var artiste = new Artiste
+        var artiste = this.artisteRepository.Find(model.Id);
+
+        if (artiste == null)
         {
-            IdArtiste = model.Id,
-            Nom = model.Nom,
-            Biographie = model.Biographie,
-        };
+            return this.RedirectToAction("Index");
+        }
+
+        artiste.Nom = model.Nom;
+        artiste.Biographie = model.Biographie;
 
         this.artisteRepository.Update(artiste);
 
diff --git a/Webzine.WebApplication/Areas/Administration/Controllers/StyleController.cs b/Webzine.WebApplication/Areas/Administration/Controllers/StyleController.cs
index 578cf4d..cb08beb 100644
--- a/Webzine.WebApplication/Areas/Administration/Controllers/StyleController.cs
+++ b/Webzine.WebApplication/Areas/Administration/Controllers/StyleController.cs
@@ -2,9 +2,11 @@ namespace Webzine.WebApplication.Areas.Administration.Controllers;
 
 using Microsoft.AspNetCore.Mvc;
 
+using ViewModels.Styles;
+
 using Webzine.Entity;
 using Webzine.Repository.Contracts;
-using Webzine.WebApplication.Areas.Administration.ViewModels.Style;
+using Webzine.WebApplication.Areas.Administration.ViewModels.Styles;
 
 /// <summary>
 /// Controleur pour la gestion des styles dans l'administration du webzine.
diff --git a/Webzine.WebApplication/Areas/Administration/ViewModels/Artiste/AdminArtisteForm.cs b/Webzine.WebApplication/Areas/Administration/ViewModels/Artiste/AdminArtisteForm.cs
index c1700cb..ee14731 100644
--- a/Webzine.WebApplication/Areas/Administration/ViewModels/Artiste/AdminArtisteForm.cs
+++ b/Webzine.WebApplication/Areas/Administration/ViewModels/Artiste/AdminArtisteForm.cs
@@ -14,11 +14,11 @@
         /// <summary>
         /// Définit le nom de l'artiste.
         /// </summary>
-        public string Nom { get; set; }
+        public string? Nom { get; set; }
 
         /// <summary>
         /// Définit la biographie de l'artiste.
         /// </summary>
-        public string Biographie { get; set; }
+        public string? Biographie { get; set; }
     }
 }
\ No newline at end of file
diff --git a/Webzine.WebApplication/Areas/Administration/ViewModels/Artiste/ArtisteEditViewModel.cs b/Webzine.WebApplication/Areas/Administration/ViewModels/Artiste/ArtisteEditViewModel.cs
index 0d34c6f..98b3887 100644
--- a/Webzine.WebApplication/Areas/Administration/ViewModels/Artiste/ArtisteEditViewModel.cs
+++ b/Webzine.WebApplication/Areas/Administration/ViewModels/Artiste/ArtisteEditViewModel.cs
@@ -20,11 +20,7 @@
         [StringLength(50, ErrorMessage = "Le nom ne doit pas dépasser 50 caractères.")]
 
         public string Nom { get; set; }
-
-        /// <summary>
-        /// Biographie de l'artiste.
-        /// </summary>
-        [Required(ErrorMessage = "Le contenu de la biographie ne peut pas être vide.")]
+        
         public string Biographie { get; set; }
     }
 }
\ No newline at end of file
diff --git a/Webzine.WebApplication/Areas/Administration/ViewModels/Styles/StyleCreateViewModel.cs b/Webzine.WebApplication/Areas/Administration/ViewModels/Styles/StyleCreateViewModel.cs
index 2eba907..de912e7 100644
--- a/Webzine.WebApplication/Areas/Administration/ViewModels/Styles/StyleCreateViewModel.cs
+++ b/Webzine.WebApplication/Areas/Administration/ViewModels/Styles/StyleCreateViewModel.cs
@@ -2,7 +2,7 @@
 // Copyright (c) Equipe 1 - BOBIN, MASI, NODON, VETU. All rights reserved.
 // </copyright>
 
-namespace Webzine.WebApplication.Areas.Administration.ViewModels.Style
+namespace Webzine.WebApplication.Areas.Administration.ViewModels.Styles
 {
     using System.ComponentModel.DataAnnotations;
 
diff --git a/Webzine.WebApplication/Areas/Administration/ViewModels/Styles/StyleDeleteViewModel.cs b/Webzine.WebApplication/Areas/Administration/ViewModels/Styles/StyleDeleteViewModel.cs
index fc94e54..daade0d 100644
--- a/Webzine.WebApplication/Areas/Administration/ViewModels/Styles/StyleDeleteViewModel.cs
+++ b/Webzine.WebApplication/Areas/Administration/ViewModels/Styles/StyleDeleteViewModel.cs
@@ -2,7 +2,7 @@
 // Copyright (c) Equipe 1 - BOBIN, MASI, NODON, VETU. All rights reserved.
 // </copyright>
 
-namespace Webzine.WebApplication.Areas.Administration.ViewModels.Style
+namespace Webzine.WebApplication.Areas.Administration.ViewModels.Styles
 {
     /// <summary>
     /// ViewModel pour la suppression d'un style en administration.
@@ -17,6 +17,6 @@ namespace Webzine.WebApplication.Areas.Administration.ViewModels.Style
         /// <summary>
         /// Obtient ou définit le libellé du style.
         /// </summary>
-        public string Libelle { get; set; }
+        public string? Libelle { get; set; }
     }
 }
\ No newline at end of file
diff --git a/Webzine.WebApplication/Areas/Administration/ViewModels/Styles/StyleEditViewModel.cs b/Webzine.WebApplication/Areas/Administration/ViewModels/Styles/StyleEditViewModel.cs
index 671098c..b959456 100644
--- a/Webzine.WebApplication/Areas/Administration/ViewModels/Styles/StyleEditViewModel.cs
+++ b/Webzine.WebApplication/Areas/Administration/ViewModels/Styles/StyleEditViewModel.cs
@@ -2,7 +2,7 @@
 // Copyright (c) Equipe 1 - BOBIN, MASI, NODON, VETU. All rights reserved.
 // </copyright>
 
-namespace Webzine.WebApplication.Areas.Administration.ViewModels.Style
+namespace Webzine.WebApplication.Areas.Administration.ViewModels.Styles
 {
     using System.ComponentModel.DataAnnotations;
 
diff --git a/Webzine.WebApplication/Areas/Administration/Views/Style/Create.cshtml b/Webzine.WebApplication/Areas/Administration/Views/Style/Create.cshtml
index c0cb8f7..ddc0c14 100644
--- a/Webzine.WebApplication/Areas/Administration/Views/Style/Create.cshtml
+++ b/Webzine.WebApplication/Areas/Administration/Views/Style/Create.cshtml
@@ -1,4 +1,4 @@
-@model Webzine.WebApplication.Areas.Administration.ViewModels.Style.StyleCreateViewModel
+@model Webzine.WebApplication.Areas.Administration.ViewModels.Styles.StyleCreateViewModel
 
 @{
     ViewData["Title"] = "Créer un style";
diff --git a/Webzine.WebApplication/Areas/Administration/Views/Style/Delete.cshtml b/Webzine.WebApplication/Areas/Administration/Views/Style/Delete.cshtml
index 47dad12..61dce02 100644
--- a/Webzine.WebApplication/Areas/Administration/Views/Style/Delete.cshtml
+++ b/Webzine.WebApplication/Areas/Administration/Views/Style/Delete.cshtml
@@ -1,4 +1,4 @@
-@model Webzine.WebApplication.Areas.Administration.ViewModels.Style.StyleDeleteViewModel
+@model Webzine.WebApplication.Areas.Administration.ViewModels.Styles.StyleDeleteViewModel
 
 @{
     ViewData["Title"] = "Supprimer un style";
diff --git a/Webzine.WebApplication/Areas/Administration/Views/Style/Edit.cshtml b/Webzine.WebApplication/Areas/Administration/Views/Style/Edit.cshtml
index 446cabe..bf57f66 100644
--- a/Webzine.WebApplication/Areas/Administration/Views/Style/Edit.cshtml
+++ b/Webzine.WebApplication/Areas/Administration/Views/Style/Edit.cshtml
@@ -1,4 +1,4 @@
-@model Webzine.WebApplication.Areas.Administration.ViewModels.Style.StyleEditViewModel
+@model Webzine.WebApplication.Areas.Administration.ViewModels.Styles.StyleEditViewModel
 
 @{
     ViewData["Title"] = "Editer un style";
diff --git a/Webzine.WebApplication/Program.cs b/Webzine.WebApplication/Program.cs
index 32c3737..4fcbc78 100644
--- a/Webzine.WebApplication/Program.cs
+++ b/Webzine.WebApplication/Program.cs
@@ -30,8 +30,8 @@ try
     // controllers avec des vues.
     builder.Services.AddControllersWithViews(options =>
         {
+            // options.Filters.Add<GlobalExceptionFilter>();
             options.Filters.Add<ValidationActionFilter>();
-            options.Filters.Add<GlobalExceptionFilter>();
         })
 
         // Ajoute la compilation des vues lors de l'execution de l'application.