Inserting a ModelValidator into a Model's Validators in ASP.NET MVC3

Question

I'm currently trying to programmatically insert a ModelClientValidationStringLengthRule ModelValidator via a custom attribute, and wishing to avoid adding to the AdditionalValues dictionary in order to make use of existing functionality.

This is due to using a CMS, and wanting to control the length of the string via the CMS rather than within a model.

I assume I would do this in the OnMetadataCreated event in the custom attribute, however I cannot see how to add to the ModelValidator collection, only get them via GetValidators...

Anyone have any ideas?

Thanks in advance,

Dave

score 0 · Accepted Answer · edited May 23 '17 at 09:59

0

Rather than adding a custom attribute, you want to inject a validator based upon a condition.

You can use the class I detail in this answer to inject your validator based upon the conditions in your CMS.

edited May 23 '17 at 09:59

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answered Sep 21 '11 at 15:54

counsellorben

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Inserting a ModelValidator into a Model's Validators in ASP.NET MVC3

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