C# - Handing Complex Validation Scenarios In MVC?
Jan 15, 2010
I'm been working on a GetRuleViolations() method for my User class, but I'm getting a little hung up on on something:
What happens when different actions require different business rules?
My User table has the following columns: Id, UserRoleId, Username, and Password. Several actions involving User are possible (create new user, edit user, set/reset password, and log in), and the business rules for each are not always the same.
For example, when users log in, they are required to enter a password, but when admins create a new user, entering a password is not even an option. And in the case of setting/resetting a password, the password needs to be entered twice, and the two values need to be an exact match. What is the best way to handle this complexity? Is there some kind of design pattern to allow the right GetRulesViolations() method to be selected for the right circumstance?
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Jun 8, 2010
point out an example or tutorial online that shows where data validation is done in the viewmodelas against the model? i saw a number of posts where that method is recommended..i dont really agree with it but i would like to see how it would work out..
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Feb 23, 2011
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Oct 18, 2010
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consider classic example: Product and Category editing Product in dropdown Id of Category is selected - Category mapped as object with all fields empty except Id when submitting Product edit form - validation gives an error: "Category name is required" (I have Required attribute on Category Name property)
How deal with such errors if I want to use built-in validation (
[Code]....
Writing custom data binder which would fill all such id-only-objects with values from database comes to mind.
upd: I did small research of mvc code and found out that validation happens before binding - so this solution would't work.
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[Code]....
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Jun 24, 2010
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[Code]....
[Code]....
How can i get full name of the property ?
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[Code]....
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