Using FluentValidation to validate on a collection of Fields (rather than on a validator model)

Question

Im trying to see if there is a way to using FluentValidation without explicitly creating a validation model for every object type in my application.

Is this technically and currently possible?

Updated

To rephrase this, is it possible for FluentValidation to validate Rules WITHOUT a IValidator context? Instead, i would like to pass in the item instance to be validated and use validation Rules which are constructed on-the-fly.

Resolved

I was able to resolve by doing a kind of a hack solution. Here are basic details of what i did:

1) I created a class (GenericModel) which has a collection of objects representing properties in a model. 2) I created a validator class that inherits from AbstractValidator. 3) Based on GenericModel's collection of "property objects" + additional metadata about each property's validation rules and error messages, i was able to add FluentValues Rules, all at run-time. 4). At the EditForm i handled the OnSubmit event. In that event handler i execute validation via FluentValidation's ValidateAsync() method. 5). Finally, i iterate thru the validation results and update each field with appropriate CSS, error messages, highlighting...etc.

Possible duplicate of Generic Validator for Model T Using Fluent Validation? — jazb
– jazb, Commented Jul 24, 2019 at 6:37
This is the article i used to get started with FL. But it doesnt address the technical issue for validation T type models. — AlvinfromDiaspar
– AlvinfromDiaspar, Commented Jul 31, 2019 at 19:16
I tried going thru the 1st article (the answer posted by Steve Harris). But i simply couldnt understand it. — AlvinfromDiaspar
– AlvinfromDiaspar, Commented Jul 31, 2019 at 19:19
Please post your edited answered as a seperate answer and mark it as solution — citronas
– citronas, Commented Aug 7, 2019 at 18:48

AlvinfromDiaspar · Accepted Answer · 2019-08-07 23:21:11Z

0

I was able to resolve by doing a kind of a hack solution. Here are basic details of what i did:

I created a class (GenericModel) which has a collection of objects representing properties in a model.
I created a validator class that inherits from AbstractValidator.
Based on GenericModel's collection of "property objects" + additional metadata about each property's validation rules and error messages, i was able to add FluentValues Rules, all at run-time.
At the EditForm i handled the OnSubmit event. In that event handler i execute validation via FluentValidation's ValidateAsync() method.
Finally, i iterate thru the validation results and update each field with appropriate CSS, error messages, highlighting...etc.

answered Aug 7, 2019 at 23:21

AlvinfromDiaspar

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1 Comment

Can Ürek Over a year ago

Can you share the codes of this solution?

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