The Complete Guide to ASP.NET Core MVC (.NET 5) - Upsert Page Handlers

The video tutorial explains how to create an 'upsert' page that combines the functionality of both create and edit views in a web application. It guides through copying and modifying existing views, handling create and update operations, and using database retrieval methods. The tutorial also covers the logic for post handlers, including model state validation and updating book properties.

What is the main purpose of combining create and edit views into a single Upsert view?

• To make the application more secure

• To improve the performance of the application

• To reduce the number of pages in the application

• To simplify the code by handling both operations in one place

What is the first step in setting up the Upsert page?

• Create a new model

• Copy the existing edit page

• Write a new controller

• Design a new database schema

Why is it necessary to use a nullable integer for the ID in the Upsert page?

• To ensure data integrity

• To handle cases where the ID is not provided during creation

• To allow for multiple IDs

• To improve database performance

What method is used to retrieve a book from the database in the Upsert page?

• FetchAsync

• FindAsync

• GetBook

• RetrieveBook

In the post handler, what should be done if the model state is not valid?

• Log the error and continue

• Return an error message

• Proceed with the operation

• Return back to the page

When should the direct update method be used in the Upsert page?

• When deleting a book

• When updating all properties of the book

• When creating a new book

• When only updating the title of the book

What is the final step after making changes in the Upsert page?

• Close the application

• Notify the user

• Save the changes and redirect back to the page

• Log the changes