Add IgnoreExtraProperties extension method for automapper mapping.

framework/src/Volo.Abp.AutoMapper/AutoMapper/AbpAutoMapperExtensibleDtoExtensions.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using Volo.Abp.AutoMapper;
 using Volo.Abp.Data;
 using Volo.Abp.ObjectExtending;
 
@@ -35,5 +36,13 @@ namespace AutoMapper
                         })
                 );
         }
+        
+        public static IMappingExpression<TSource, TDestination> IgnoreExtraProperties<TSource, TDestination>(
+            this IMappingExpression<TSource, TDestination> mappingExpression)
+            where TDestination : IHasExtraProperties
+            where TSource : IHasExtraProperties
+        {
+            return mappingExpression.Ignore(x => x.ExtraProperties);
+        }
     }
 }