diff --git a/.idea/.idea.HopFrame/.idea/workspace.xml b/.idea/.idea.HopFrame/.idea/workspace.xml
index 3892c01..a7069f2 100644
--- a/.idea/.idea.HopFrame/.idea/workspace.xml
+++ b/.idea/.idea.HopFrame/.idea/workspace.xml
@@ -9,11 +9,12 @@
     <option name="autoReloadType" value="SELECTIVE" />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="0648788e-7696-4e60-bf12-5d5601f33d8c" name="Changes" comment="Added automatic relation mapping">
+    <list default="true" id="0648788e-7696-4e60-bf12-5d5601f33d8c" name="Changes" comment="Added creation/modification confirmation">
       <change beforePath="$PROJECT_DIR$/.idea/.idea.HopFrame/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/.idea.HopFrame/.idea/workspace.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/src/HopFrame.Core/Config/PropertyConfig.cs" beforeDir="false" afterPath="$PROJECT_DIR$/src/HopFrame.Core/Config/PropertyConfig.cs" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/src/HopFrame.Core/Services/Implementations/ContextExplorer.cs" beforeDir="false" afterPath="$PROJECT_DIR$/src/HopFrame.Core/Services/Implementations/ContextExplorer.cs" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/src/HopFrame.Web/Components/Dialogs/HopFrameEditor.razor" beforeDir="false" afterPath="$PROJECT_DIR$/src/HopFrame.Web/Components/Dialogs/HopFrameEditor.razor" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/testing/HopFrame.Testing/Models/Post.cs" beforeDir="false" afterPath="$PROJECT_DIR$/testing/HopFrame.Testing/Models/Post.cs" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/testing/HopFrame.Testing/Models/User.cs" beforeDir="false" afterPath="$PROJECT_DIR$/testing/HopFrame.Testing/Models/User.cs" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/testing/HopFrame.Testing/Program.cs" beforeDir="false" afterPath="$PROJECT_DIR$/testing/HopFrame.Testing/Program.cs" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
@@ -148,7 +149,7 @@
       <workItem from="1736875984621" duration="8464000" />
       <workItem from="1736884461354" duration="1075000" />
       <workItem from="1736962119221" duration="8119000" />
-      <workItem from="1737021098746" duration="19408000" />
+      <workItem from="1737021098746" duration="21001000" />
     </task>
     <task id="LOCAL-00001" summary="Added basic configuration">
       <option name="closed" value="true" />
@@ -214,7 +215,23 @@
       <option name="project" value="LOCAL" />
       <updated>1737037853482</updated>
     </task>
-    <option name="localTasksCounter" value="9" />
+    <task id="LOCAL-00009" summary="Added property validation">
+      <option name="closed" value="true" />
+      <created>1737040612038</created>
+      <option name="number" value="00009" />
+      <option name="presentableId" value="LOCAL-00009" />
+      <option name="project" value="LOCAL" />
+      <updated>1737040612038</updated>
+    </task>
+    <task id="LOCAL-00010" summary="Added creation/modification confirmation">
+      <option name="closed" value="true" />
+      <created>1737040946489</created>
+      <option name="number" value="00010" />
+      <option name="presentableId" value="LOCAL-00010" />
+      <option name="project" value="LOCAL" />
+      <updated>1737040946489</updated>
+    </task>
+    <option name="localTasksCounter" value="11" />
     <servers />
   </component>
   <component name="TypeScriptGeneratedFilesManager">
@@ -232,6 +249,8 @@
     <MESSAGE value="Added reload button and animation" />
     <MESSAGE value="Added relation picker dialog" />
     <MESSAGE value="Added automatic relation mapping" />
-    <option name="LAST_COMMIT_MESSAGE" value="Added automatic relation mapping" />
+    <MESSAGE value="Added property validation" />
+    <MESSAGE value="Added creation/modification confirmation" />
+    <option name="LAST_COMMIT_MESSAGE" value="Added creation/modification confirmation" />
   </component>
 </project>
\ No newline at end of file
diff --git a/src/HopFrame.Core/Config/PropertyConfig.cs b/src/HopFrame.Core/Config/PropertyConfig.cs
index 783edf0..011542d 100644
--- a/src/HopFrame.Core/Config/PropertyConfig.cs
+++ b/src/HopFrame.Core/Config/PropertyConfig.cs
@@ -13,7 +13,6 @@ public class PropertyConfig(PropertyInfo info, TableConfig table) {
     public PropertyInfo? DisplayedProperty { get; set; }
     public Func<object, string>? Formatter { get; set; }
     public Func<string, object>? Parser { get; set; }
-    public Func<object>? Template { get; set; }
     public Func<object?, Task<IEnumerable<string>>>? Validator { get; set; }
     public bool Editable { get; set; } = true;
     public bool Creatable { get; set; } = true;
@@ -61,11 +60,6 @@ public class PropertyConfig<TProp>(PropertyConfig config) {
         return this;
     }
 
-    public PropertyConfig<TProp> ValueTemplate(Func<TProp> template) {
-        InnerConfig.Template = () => template.Invoke()!;
-        return this;
-    }
-
     public PropertyConfig<TProp> Editable(bool editable) {
         InnerConfig.Editable = editable;
         return this;
diff --git a/src/HopFrame.Web/Components/Dialogs/HopFrameEditor.razor b/src/HopFrame.Web/Components/Dialogs/HopFrameEditor.razor
index bd16751..8f18e57 100644
--- a/src/HopFrame.Web/Components/Dialogs/HopFrameEditor.razor
+++ b/src/HopFrame.Web/Components/Dialogs/HopFrameEditor.razor
@@ -129,7 +129,7 @@
 
     private bool _currentlyEditing;
     private ITableManager? _manager;
-    private Dictionary<string, List<string>> _validationErrors = new();
+    private readonly Dictionary<string, List<string>> _validationErrors = new();
 
     protected override void OnInitialized() {
         _currentlyEditing = Content.CurrentObject is not null;
@@ -150,24 +150,14 @@
         if (Content.CurrentObject is null) return default;
         var value = config.Info.GetValue(Content.CurrentObject);
 
-        var newlyGenerated = false;
-        if (config.Info.PropertyType.IsDefaultValue(value) && config.Template is not null && !_currentlyEditing) {
-            value = config.Template.Invoke();
-            newlyGenerated = true;
-        }
-
         if (value is null)
             return default;
 
         if (config.Info.PropertyType == typeof(TValue))
             return (TValue)value;
 
-        if (typeof(TValue) == typeof(string)) {
-            if (!newlyGenerated)
-                return (TValue)(object)_manager!.DisplayProperty(Content.CurrentObject, config.Info, Content.Config);
-            
-            return (TValue)(object)value.ToString()!;
-        }
+        if (typeof(TValue) == typeof(string))
+            return (TValue)(object)_manager!.DisplayProperty(Content.CurrentObject, config.Info, Content.Config);
 
         return (TValue)Convert.ChangeType(value, typeof(TValue));
     }
diff --git a/testing/HopFrame.Testing/Models/Post.cs b/testing/HopFrame.Testing/Models/Post.cs
index adf79a8..e73af9a 100644
--- a/testing/HopFrame.Testing/Models/Post.cs
+++ b/testing/HopFrame.Testing/Models/Post.cs
@@ -12,13 +12,13 @@ public class Post {
     public required string Caption { get; set; }
     
     public required string Content { get; set; }
-
+    
     [ForeignKey("author")]
-    public User? Author { get; set; }
+    public virtual required User Author { get; set; }
 
     public bool Published { get; set; }
 
-    public DateTime CreatedAt { get; set; }
+    public DateTime CreatedAt { get; set; } = DateTime.Now;
 
     public DateOnly Created { get; set; }
 
diff --git a/testing/HopFrame.Testing/Models/User.cs b/testing/HopFrame.Testing/Models/User.cs
index 29804a5..f1ae63d 100644
--- a/testing/HopFrame.Testing/Models/User.cs
+++ b/testing/HopFrame.Testing/Models/User.cs
@@ -4,7 +4,7 @@ namespace HopFrame.Testing.Models;
 
 public class User {
     [Key]
-    public required Guid Id { get; init; }
+    public required Guid Id { get; init; } = Guid.CreateVersion7();
     public required string Email { get; init; }
     public string? Username { get; set; }
     public string? Password { get; set; }
diff --git a/testing/HopFrame.Testing/Program.cs b/testing/HopFrame.Testing/Program.cs
index 4dc0e58..c3d433a 100644
--- a/testing/HopFrame.Testing/Program.cs
+++ b/testing/HopFrame.Testing/Program.cs
@@ -32,8 +32,7 @@ builder.Services.AddHopFrame(options => {
                 .SetDisplayName("Last Name");
 
             table.Property(u => u.Id)
-                .Sortable(false)
-                .ValueTemplate(Guid.CreateVersion7);
+                .Sortable(false);
 
             table.SetDisplayName("Benutzer");
         });
@@ -47,8 +46,7 @@ builder.Services.AddHopFrame(options => {
             .SetDisplayName("ID");
 
         context.Table<Post>()
-            .Property(p => p.CreatedAt)
-            .ValueTemplate(() => DateTime.UtcNow);
+            .Property(p => p.CreatedAt);
 
         context.Table<Post>()
             .Property(p => p.Caption)