Question

I am delevelopring my first MVC application and I am using a classic ADO.NET dataset as a model. The guide I am following is the NerdDinner ASP.NET MVC Tutorial and it mentions a GetRuleViolations() method for a Linq To SQL model. I would like to have a similar method to check that a datarow is valid after editing. How could I do such a thing?

Answer 1

Datasets are disconnected. As such they don’t support validation rules unless you add constraints manually.

Edit: From the link:

We’ll implement IsValid and GetRuleViolations() by adding a “partial class” to our project. Partial classes can be used to add methods/properties/events to classes maintained by a VS designer (like the Dinner class generated by the LINQ to SQL designer) and help avoid the tool from messing with our code.

You could do something similar with a typed dataset.

See this link on validation with typed datasets.