The Complete Guide to ASP.NET Core MVC (.NET 5) - Create Book and Validations

The video tutorial covers the process of implementing validation in a form submission using ASP.NET. It explains the creation of a post handler for data submission, property binding, and model state validation. The tutorial also details how to add and save data to a database, handle errors, and debug issues. Finally, it demonstrates how to display error messages in the user interface using ASP validation helpers.

What is the role of the 'DB.saveChangesAsync()' command in the book creation process?

How does the application provide feedback when a required field is not filled?

What modifications are made to the view to display error messages for invalid inputs?