/// <summary>
        /// Validate the whole form and trigger client UI update.
        /// </summary>
        /// <param name="editContext"></param>
        /// <param name="messages"></param>
        private async void ValidateModel(EditContext editContext, ValidationMessageStore messages)
        {
            // <EditForm> should now be able to run async validations:
            // https://github.com/dotnet/aspnetcore/issues/11914
            var validationResults = await TryValidateModel(editContext);

            messages.Clear();

            var graph = new ModelGraphCache(editContext.Model);

            foreach (var error in validationResults.Errors)
            {
                var(propertyValue, propertyName) = graph.EvalObjectProperty(error.PropertyName);
                // while it is impossible to have a validation error for a null child property, better be safe than sorry...
                if (propertyValue != null)
                {
                    var fieldID = new FieldIdentifier(propertyValue, propertyName);
                    messages.Add(fieldID, error.ErrorMessage);
                }
            }

            editContext.NotifyValidationStateChanged();
        }
예제 #2
0
        /// <summary>
        /// Validate the whole form and trigger client UI update.
        /// </summary>
        /// <param name="editContext"></param>
        /// <param name="messages"></param>
        private void ValidateModel(EditContext editContext, ValidationMessageStore messages)
        {
            // WARNING: DO NOT USE Async Void + ValidateAsync here
            // Explanation: Blazor UI will get VERY BUGGY for some reason if you do that. (Field CSS lagged behind validation)
            var validationResults = TryValidateModel(editContext);

            messages.Clear();

            var graph = new ModelGraphCache(editContext.Model);

            foreach (var error in validationResults.Errors)
            {
                var(propertyValue, propertyName) = graph.EvalObjectProperty(error.PropertyName);
                // while it is impossible to have a validation error for a null child property, better be safe than sorry...
                if (propertyValue != null)
                {
                    var fieldID = new FieldIdentifier(propertyValue, propertyName);
                    messages.Add(fieldID, error.ErrorMessage);
                }
            }

            editContext.NotifyValidationStateChanged();
        }