Chapter 6. Validation
We can never rely on the data entered by users. Sometimes they might be ignorant about the application and thus they may be entering incorrect data unknowingly. At other times, some malign users may want to corrupt the application by entering inappropriate data into it. In either case, we need to validate the input data before storing the data for further processing.
In this chapter, you'll be learning about the following topics:
- Different types of validation
- Server-side validation with an example
- Client-side validation with an example
- Unobtrusive JavaScript validation using jQuery unobtrusive libraries, where we don't have to write separate code for validation
In an ideal case, users will enter valid data in a proper format in your application. But, as you might realize, the real world is not so ideal. Users will enter incorrect data in your application. As a developer, it is the responsibility of us to validate the user input in our application. If...
