What is Entity Framework in NET Framework?

Once you click on the Add button, it will open the Choose Data Model wizard as shown below. From this window select “EF Designer from database” and click on the Next button as shown in the below image. Here, select the “EF Designer from database” option as we are going to use the Entity Framework Database First Approach. But Entity Framework can do all of the above automatically for us if we provide the necessary database schema to the Entity Framework. Let us understand this step by step how to achieve the same using Entity Framework.

PRO TIP – Sometimes, writing lines of properties and adding the get and sets can be quite frustrating from a developer’s point of view. All you have to enter is the data type and the name of the property. The Entity Framework Core is an updated and enhanced version of the Entity Framework designed for .NET Core applications. While EF Core is relatively new and not as fully developed as EF 6, it still provides support for the same features and concepts as its predecessor.

Model First Approach

It makes DB related operations quite simple and effecient. I will leave it to you to check if the record has been what is entity framework updated properly. You can also try to delete the record.Feel free to modify the source code available on GitHub.

When you make any changes to the object, the ORM will usually detect this, and mark the object as ‘modified’. When you save all the changes in your ORM to the database, the ORM will automatically generate insert/update/delete statements, based on what you did with the objects. I’d like to think i’m not your typical weekend hobbyist programmer. I’m currently working for a company that inherited a rather large application fully written on top of E.F. Performance problems (bad code throughout, but E.F. is certainly not helping with the generated queries), awful to change schema details with several hundred tables to manage, etc. I very much prefer to roll my own data layer for a large project (hell, even small projects – its just easy boilerplate code to write and I don’t mind taking the effort to write it).

Implementing Entity Framework Core in ASP.NET Core 3.1 WebApi – Code-First Approach

It will create the DBContext class for us whose name is the same as the name of the connection string that is EmployeeDBContext. The EmployeeDBContext class derives from the DbContext class and is responsible for establishing a connection to the database. The  EmployeeDataModel.Context.cs which is inside EmployeedataModel.Context.tt as sown below. Then we need to select the database object for our application. As our database has one table, so we need to select that Employee Table.

Once you click on the Next button, it will open Choose Your Database Objects as shown below. From the below window, select the “Departments” and “Employees” tables. Change the Model Namespace to “EmployeeModel” and click on the “Finish” button as shown in the below image.