Calling an stored procedure using ADO.NET Entity Model

Create a new asp.net website in your solution. Now add a new project as a class library named Business Layer. Add a new project again and name it DAL.

Add the reference of BusinessLayer to the asp.net website project. Similarly, add the reference of the DAL project to BusinessLayer. This all we are doing as we are trying to create a layered architecture for the sample application.

Now right click on the DAL project and add a new item -> ADO.NET Entity Model click ok.

Now it'll ask you to configure your Model from the database. Here I'm skipping this step assuming that you may know how to configure the model using the wizard.

After configuration, your model will be added and opened and will show all your tables you have select from the wizard.

Now create a stored Procedure in your database.
Come back to your solution and open the sampleModel.edmx from the DAL project and right-click.
Click on "Update the model from database" it'll open the same wizard that was appeared while you were adding the Model. But this time it'll only show the newly added item in the database.
Expand the stored procedure item and select your stored procedure from the list.

Now click finish and save the Model.
Go to the visual studio menu and select View->Other Windows -> Entity Data Model Browser
Now open the Model Browser and expand Entity Container and right-click on "Function Imports" and click "Add Function Import…".
Name the function "GetAllEmployees" and select the available stored procedure in the model from the dropdown list GetAllEmployees. Now select the return type so you are going to show the employee details so the return type would be the Entity: Employee
Click on and save the model.