Api/Ewide.Core/Ewide.Core.WebApi/App_Start/WebApiConfig.cs

@@ -31,6 +31,8 @@ namespace Ewide.Core.WebApi
             // 500
             config.Services.Replace(typeof(IHttpActionInvoker), new HttpWebApiControllerActionInvoker(config));
             #endregion
+
+            config.Filters.Add(new ValidateArgumentsFilter());
         }
     }
 }

Api/Ewide.Core/Ewide.Core.WebApi/Areas/Base/Controllers/GateController.cs

@@ -8,7 +8,6 @@ using System.Web.Http;
 
 namespace Ewide.Core.WebApi.Areas.Base.Controllers
 {
-    [ValidateArgumentsFilter]
     public class GateController : BaseController
     {
         /// <summary>
@@ -16,10 +15,15 @@ namespace Ewide.Core.WebApi.Areas.Base.Controllers
         /// </summary>
         /// <param name="dto"></param>
         /// <returns></returns>
-        [ValidateArgumentsFilter(AllowNull = true)]
         public IHttpActionResult Login(LoginDTO dto)
         {
             return DisplayJSON(dto);
         }
+
+        [ValidateArgumentsFilter(AllowNull = true)]
+        public IHttpActionResult AllowNullAPI(LoginDTO dto)
+        {
+            return DisplayJSON(dto);
+        }
     }
 }

Api/Ewide.Core/Ewide.Core.WebApi/Controllers/Code/ValidateArgumentsFilter.cs

@@ -11,6 +11,7 @@ using System.Web.Http.Filters;
 
 namespace Ewide.Core.WebApi
 {
+    [AttributeUsage(AttributeTargets.All, AllowMultiple = false)]
     public class ValidateArgumentsFilter : ActionFilterAttribute
     {
         public bool AllowNull { get; set; } = false;