diff --git a/FormsToolkit/FormsToolkit/Services/MessagingService.cs b/FormsToolkit/FormsToolkit/Services/MessagingService.cs
index b7ead87..9bb0c31 100644
--- a/FormsToolkit/FormsToolkit/Services/MessagingService.cs
+++ b/FormsToolkit/FormsToolkit/Services/MessagingService.cs
@@ -82,11 +82,13 @@ public class MessagingServiceQuestion
         /// </summary>
         /// <value>The title.</value>
         public string Title {get;set;}
+
         /// <summary>
         /// Gets or sets the question.
         /// </summary>
         /// <value>The question.</value>
         public string Question { get; set; }
+
         /// <summary>
         /// Gets or sets the positive button text.
         /// </summary>
@@ -98,6 +100,12 @@ public class MessagingServiceQuestion
         /// </summary>
         /// <value>The negative.</value>
         public string Negative { get; set; }
+
+        /// <summary>
+        /// Gets or sets the OnCompleted Action&lt;bool&gt;.
+        /// </summary>
+        /// <value>The OnCompleted Action&lt;bool&gt;.</value>
+        public Action<bool> OnCompleted { get; set; }
     }
 
     /// <summary>
@@ -110,6 +118,7 @@ public class MessagingServiceAlert
         /// </summary>
         /// <value>The title.</value>
         public string Title {get;set;}
+
         /// <summary>
         /// Gets or sets the message.
         /// </summary>
@@ -121,6 +130,12 @@ public class MessagingServiceAlert
         /// </summary>
         /// <value><c>true</c> if this instance cancel; otherwise, <c>false</c>.</value>
         public string Cancel { get; set; }
+
+        /// <summary>
+        /// Gets or sets the OnCompleted Action.
+        /// </summary>
+        /// <value>The OnCompleted Action.</value>
+        public Action OnCompleted { get; set; }
     }
 }