Other types of validation include applying patterns to data to enforce business rules, such as a credit card, phone number, or email address.Validation attributes make enforcing these requirements much simpler and easier to use.However, some validation rules are specific to your business, as they're not just generic data validation such as ensuring a field is required or that it conforms to a range of values.
In business terms, even a few fractions of seconds multiplied hundreds of times each day adds up to be a lot of time, expense, and frustration.
Straightforward and immediate validation enables users to work more efficiently and produce better quality input and output.
Creating your own custom validation attributes in MVC is easy.
Just inherit from the attribute checks the genre first, and if it is a classic, then it checks the release date to see that it is later than 1960. The attribute accepts an integer parameter representing the year that you can use to validate data.
The Submit button runs Java Script that either submits the form or displays error messages.
MVC determines type attribute values based on the .
You can configure this number by inserting the following code into the and react appropriately.
In many cases, the appropriate reaction is to return some kind of error response, ideally detailing the reason why model validation failed.
You can capture the value of the parameter in the attribute's constructor, as shown here: Client side validation is a great convenience for users.