Beginning Entity Framework Core 5: From Novice to Professional

© Eric Vogel 2021

E. VogelBeginning Entity Framework Core 5https://doi.org/10.1007/978-1-4842-6882-7_9

9. Updating Data

Eric Vogel¹  

(1)

Okemos, MI, USA

 

In this chapter, I will cover how to update existing data using Entity Framework Core 5. I will cover how to update the root entity and its associated child entities as well.

Updating the Root Entity

A simple way to update an entity is to first retrieve it and then modify the needed properties and commit the change through SaveChanges. For example, to update a record by Id, you would first retrieve the record by its Id, then change any property values, and commit the change through the context as follows:

using (var context = new AppDbContext())

{

    var person = context.Persons.Single(x => x.Id == 1); ...