/// <summary>
        /// Binds the model to a value by using the specified controller context and binding context.
        /// </summary>
        /// <returns>
        /// The bound value.
        /// </returns>
        /// <param name="controllerContext">The controller context.</param><param name="bindingContext">The binding context.</param>
        public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
        {
            Type collectionType       = bindingContext.ModelType;
            Type collectionEntityType = collectionType.GetGenericArguments().First();

            ValueProviderResult valueProviderResult = bindingContext.ValueProvider.GetValue(bindingContext.ModelName);

            if (valueProviderResult != null)
            {
                int   countOfEntityIds = (valueProviderResult.RawValue as string[]).Length;
                Array entities         = Array.CreateInstance(collectionEntityType, countOfEntityIds);

                Type entityInterfaceType = collectionEntityType.GetInterfaces()
                                           .First(interfaceType => interfaceType.IsGenericType &&
                                                  interfaceType.GetGenericTypeDefinition() == typeof(IEntityWithTypedId <>));

                Type idType = entityInterfaceType.GetGenericArguments().First();

                for (int i = 0; i < countOfEntityIds; i++)
                {
                    string rawId = (valueProviderResult.RawValue as string[])[i];

                    if (string.IsNullOrEmpty(rawId))
                    {
                        return(null);
                    }

                    object typedId =
                        (idType == typeof(Guid))
                            ? new Guid(rawId)
                            : Convert.ChangeType(rawId, idType);

                    object entity = ValueBinderHelper.GetEntityFor(collectionEntityType, typedId, idType);
                    entities.SetValue(entity, i);
                }

                //base.BindModel(controllerContext, bindingContext);
                return(entities);
            }
            return(base.BindModel(controllerContext, bindingContext));
        }
示例#2
0
        /// <summary>
        /// Binds the model value to an entity by using the specified controller context and binding context.
        /// </summary>
        /// <returns>
        /// The bound value.
        /// </returns>
        /// <param name="controllerContext">The controller context.</param><param name="bindingContext">The binding context.</param>
        public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
        {
            Type modelType = bindingContext.ModelType;

            ValueProviderResult valueProviderResult = bindingContext.ValueProvider.GetValue(bindingContext.ModelName);

            if (valueProviderResult != null)
            {
                Type entityInterfaceType = modelType.GetInterfaces()
                                           .First(interfaceType => interfaceType.IsGenericType &&
                                                  interfaceType.GetGenericTypeDefinition() == typeof(IEntityWithTypedId <>));

                Type   idType = entityInterfaceType.GetGenericArguments().First();
                string rawId  = (valueProviderResult.RawValue as string[]).First();

                if (string.IsNullOrEmpty(rawId))
                {
                    return(null);
                }

                try
                {
                    object typedId =
                        (idType == typeof(Guid))
                            ? new Guid(rawId)
                            : Convert.ChangeType(rawId, idType);

                    return(ValueBinderHelper.GetEntityFor(modelType, typedId, idType));
                }
                // If the Id conversion failed for any reason, just return null
                catch (Exception)
                {
                    return(null);
                }
            }

            return(base.BindModel(controllerContext, bindingContext));
        }