AddOrUpdateAppointmentForm now populates values when modifying appointment

C969Project/Data/DatabaseHelper.cs

@@ -421,7 +421,7 @@ namespace C969Project.Data
             return null;
         }
 
-        public static List<Appointment> RetrieveAllAppointments(int? userId = null)
+        public static List<Appointment> RetrieveAppointments(int? userId = null)
         {
             using MySqlConnection connection = new MySqlConnection(AppSettings.GetSetting("ConnectionStrings", "DefaultConnection"));
             try

C969Project/Data/Models/Customer.cs

@@ -10,4 +10,9 @@ public class Customer
     public string CreatedBy { get; set; }
     public DateTime LastUpdate { get; set; }
     public string LastUpdateBy { get; set; }
+
+    public override string ToString()
+    {
+        return CustomerName;
+    }
 }