resolved #646

src/Abp/Abp.csproj

@@ -81,6 +81,7 @@
   <ItemGroup>
     <Compile Include="AbpConsts.cs" />
     <Compile Include="AbpServiceBase.cs" />
+    <Compile Include="Auditing\AuditingContractResolver.cs" />
     <Compile Include="Authorization\PermissionDependencyContext.cs" />
     <Compile Include="Authorization\PermissionDependencyExtensions.cs" />
     <Compile Include="BackgroundJobs\BackgroundJobConfiguration.cs" />

src/Abp/Auditing/AuditingContractResolver.cs

@@ -0,0 +1,24 @@
+using System.Reflection;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Serialization;
+
+namespace Abp.Auditing
+{
+    /// <summary>
+    /// Decides which properties of auditing class to be serialized
+    /// </summary>
+    public class AuditingContractResolver : CamelCasePropertyNamesContractResolver
+    {
+        protected override JsonProperty CreateProperty(MemberInfo member, MemberSerialization memberSerialization)
+        {
+            JsonProperty property = base.CreateProperty(member, memberSerialization);
+
+            if (member.IsDefined(typeof(DisableAuditingAttribute)) || member.IsDefined(typeof(JsonIgnoreAttribute)))
+            {
+                property.ShouldSerialize = instance => false;
+            }
+
+            return property;
+        }
+    }
+}

src/Abp/Auditing/AuditingHelper.cs

@@ -1,6 +1,7 @@
 using System.Linq;
 using System.Reflection;
 using Abp.Runtime.Session;
+using Newtonsoft.Json;
 
 namespace Abp.Auditing
 {
@@ -59,5 +60,15 @@ public static bool ShouldSaveAudit(MethodInfo methodInfo, IAuditingConfiguration
 
             return defaultValue;
         }
+
+        public static string Serialize(object obj)
+        {
+            var options = new JsonSerializerSettings
+            {
+                ContractResolver = new AuditingContractResolver()
+            };
+
+            return JsonConvert.SerializeObject(obj, options);
+        }
     }
 }

src/Abp/Auditing/AuditingInterceptor.cs

@@ -140,7 +140,7 @@ private string ConvertArgumentsToJson(IInvocation invocation)
                     dictionary[parameter.Name] = argument;
                 }
 
-                return dictionary.ToJsonString(true);
+                return AuditingHelper.Serialize(dictionary);
             }
             catch (Exception ex)
             {

src/Abp/Auditing/DisableAuditingAttribute.cs

@@ -6,7 +6,7 @@ namespace Abp.Auditing
     /// Used to disable auditing for a single method or
     /// all methods of a class or interface.
     /// </summary>
-    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method)]
+    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method | AttributeTargets.Property)]
     public class DisableAuditingAttribute : Attribute
     {
 

src/Tests/Abp.Tests/Abp.Tests.csproj

@@ -85,6 +85,7 @@
   <ItemGroup>
     <Compile Include="Application\Navigation\Menu_Tests.cs" />
     <Compile Include="Application\Navigation\NavigationTestCase.cs" />
+    <Compile Include="Auditing\AuditingHelper_Tests.cs" />
     <Compile Include="BackgroundJobs\InMemoryBackgroundJobStore_Tests.cs" />
     <Compile Include="Collections\Extensions\ListExtensions_Tests.cs" />
     <Compile Include="DisposeAction_Test.cs" />

src/Tests/Abp.Tests/Auditing/AuditingHelper_Tests.cs

@@ -0,0 +1,44 @@
+using Abp.Auditing;
+using Shouldly;
+using Xunit;
+
+namespace Abp.Tests.Auditing
+{
+    public class AuditingHelper_Tests
+    {
+        [Fact]
+        public void Ignored_Properties_Should_Not_Be_Serialized()
+        {
+            var json = AuditingHelper.Serialize(new AuditingHelperTestPersonDto
+            {
+                FullName = "John Doe",
+                Age = 18,
+                School = new AuditingHelperTestSchoolDto
+                {
+                    Name = "Crosswell Secondary",
+                    Address = "Broadway Ave, West Bend"
+                }
+            });
+
+            json.ShouldBe("{\"fullName\":\"John Doe\",\"school\":{\"name\":\"Crosswell Secondary\"}}");
+        }
+
+        public class AuditingHelperTestPersonDto
+        {
+            public string FullName { get; set; }
+
+            [DisableAuditing]
+            public int Age { get; set; }
+
+            public AuditingHelperTestSchoolDto School { get; set; }
+        }
+
+        public class AuditingHelperTestSchoolDto
+        {
+            public string Name { get; set; }
+
+            [DisableAuditing]
+            public string Address { get; set; }
+        }
+    }
+}