add null binding source

FluentValidation.AutoValidation.Mvc/src/Configuration/AutoValidationMvcConfiguration.cs

@@ -49,6 +49,11 @@ public class AutoValidationMvcConfiguration
         /// </summary>
         public bool EnableCustomBindingSourceAutomaticValidation { get; set; } = false;
 
+        /// <summary>
+        /// Enables asynchronous automatic validation for parameters not bound from any binding source (typically parameters without a declared or inferred binding source).
+        /// </summary>
+        public bool EnableNullBindingSourceAutomaticValidation { get; set; } = false;
+
         /// <summary>
         /// Holds the overridden result factory. This property is meant for infrastructure and should not be used by application code.
         /// </summary>

FluentValidation.AutoValidation.Mvc/src/Filters/FluentValidationAutoValidationActionFilter.cs

@@ -30,7 +30,7 @@
             this.autoValidationMvcConfiguration = autoValidationMvcConfiguration.Value;
         }
 
         public async Task OnActionExecutionAsync(ActionExecutingContext actionExecutingContext, ActionExecutionDelegate next)
         {
             if (IsValidController(actionExecutingContext.Controller))
             {
@@ -40,7 +40,7 @@
 
                 if (endpoint != null &&
                     ((autoValidationMvcConfiguration.ValidationStrategy == ValidationStrategy.Annotations &&
                       !endpoint.Metadata.OfType<FluentValidationAutoValidationAttribute>().Any() && !endpoint.Metadata.OfType<AutoValidationAttribute>().Any()) ||
                      endpoint.Metadata.OfType<AutoValidateNeverAttribute>().Any()))
                 {
                     HandleUnvalidatedEntries(actionExecutingContext);
@@ -120,7 +120,7 @@
             await next();
         }
 
         private bool IsValidController(object controller)
         {
             var controllerType = controller.GetType();
 
@@ -141,7 +141,8 @@
                    (autoValidationMvcConfiguration.EnableFormBindingSourceAutomaticValidation && bindingSource == BindingSource.Form) ||
                    (autoValidationMvcConfiguration.EnableQueryBindingSourceAutomaticValidation && bindingSource == BindingSource.Query) ||
                    (autoValidationMvcConfiguration.EnablePathBindingSourceAutomaticValidation && bindingSource == BindingSource.Path) ||
-                   (autoValidationMvcConfiguration.EnableCustomBindingSourceAutomaticValidation && bindingSource == BindingSource.Custom);
+                   (autoValidationMvcConfiguration.EnableCustomBindingSourceAutomaticValidation && bindingSource == BindingSource.Custom) ||
+                   (autoValidationMvcConfiguration.EnableNullBindingSourceAutomaticValidation && bindingSource == null);
         }
 
         private void HandleUnvalidatedEntries(ActionExecutingContext context)

README.md

@@ -61,6 +61,7 @@ app.MapPost("/", (SomeOtherModel someOtherModel) => $"Hello again {someOtherMode
 | EnableQueryBindingSourceAutomaticValidation  | `true`                   | Enables asynchronous automatic validation for parameters bound from `BindingSource.Query` binding sources (typically parameters decorated with the `[FromQuery]` attribute).                                                                                                                                                                                                                             |
 | EnablePathBindingSourceAutomaticValidation   | `false`                  | Enables asynchronous automatic validation for parameters bound from `BindingSource.Path` binding sources (typically parameters decorated with the `[FromRoute]` attribute).                                                                                                                                                                                                                              |
 | EnableCustomBindingSourceAutomaticValidation | `false`                  | Enables asynchronous automatic validation for parameters bound from `BindingSource.Custom` binding sources.                                                                                                                                                                                                                                                                                              |
+| EnableNullBindingSourceAutomaticValidation   | `false`                  | Enables asynchronous automatic validation for parameters not bound from any binding source (typically parameters without a declared or inferred binding source).                                                                                                                                                                                                                                         |
 
 ```
 using SharpGrip.FluentValidation.AutoValidation.Mvc.Extensions;