Did you like how we did? Rate your experience!

Rated 4.5 out of 5 stars by our customers 561

Award-winning PDF software

review-platform review-platform review-platform review-platform review-platform

Video instructions and help with filling out and completing What Form 2220 Deduction

Instructions and Help about What Form 2220 Deduction

P>Since part three of the Entity Framework tutorial, in this video we'll discuss the code first approach of Entity Framework. Entity Framework supports all three approaches: schema first, model first, and code first. In part one, we discussed the schema first approach. The model first approach was discussed in part two, and in this video, we'll discuss the code first approach. The code first approach allows us to create our custom classes first, and based on those custom classes, Entity Framework can automatically generate the database and create the required tables for us. Let's understand using the code first approach with an example. We'll be modifying the same example that we worked with in the previous session of this video series. So, let's flip to Visual Studio. Notice that we already have this EmployeeModel.edmx file, which we have generated using the model first approach in the previous session of this video series. So, let's go and delete that first because we no longer require that. Let's also delete this EmployeeModel.edmx.SQL file, which contains the required SQL to create the database tables. So, let's go ahead and delete that as well. Alright, all we have at the moment is the web config file and the web form, which contains the GridView control and EntityDataSource control. So, to this project, let's add a class file and let's call this Department.cs. So, this file is going to contain the definition for the Department class. So, what other things does a typical department contain? ID, name, location, and a department will also contain some employees. So, it is also going to contain maybe an employees property, which is going to return a list of employees back. Basically, what the Department class is going to look like is this, with ID, name, location, and an employees property,...