Steps to Add New Field With Code First Approach in .NET Core

I have written a post on Code first approach with . Net Core which you can find here .

In the above post, I have not covered adding an additional new field in the model and migrating it to the database using the Code first approach.

Let us look at that scenario in this post.

For this, we will use the code which we implemented during the Code first approach demo , you can find the code here .

Add a New Field

Let us first add a new field to the Employee model. We will add EmployeeLocation   as shown below:

Note:Please note that  EmployeeLocation   is nothing but the Country Code, I have not added any additional table for the current post.

public class Employee
{
public int EmployeeId { get; set; }
public string EmployeeName { get; set; }
public int EmployeeAge { get; set; }
public int EmployeeLocation { get; set; } //// New field

public int DepartmentId { get; set; }
public Department Department { get; set; }
}

Once this is done, let us add this new field to the Index.cshtml view so that we can see new column in the browser:

<th>
@Html.DisplayNameFor(model => model.EmployeeLocation)
</th>

<td>
@Html.DisplayFor(modelItem => item.EmployeeLocation)
</td>

We have added the fields in the model, but we have not informed our database of this change yet.

Run Two Commands, That's It

For this, we just need to run two commands in the Package Management Console (PMC)