how to alter add more pages in mvc project

Question

User-2092665869 posted

If I have created a web app using mvc and entity framework and If I want to modify some functionalities and add some relationships with tables then what should I do.

Thanks

Answer 1

User1120430333 posted

If I have created a web app using mvc and entity framework and If I want to modify some functionalities and add some relationships with tables then what should I do.

Thanks

Well, if you were using a Repository and Data Access Layer, the separation of concerns,  where you don't have DB access in the controller using EF code first, then the changes to the DB and EF should not concern what is happening on the client-side and ASP.NET MVC.

That's what you should be taking into consideration.

http://www.c-sharpcorner.com/UploadFile/56fb14/understanding-separation-of-concern-and-Asp-Net-mvc/

  

Answer 2

User475983607 posted

If I have created a web app using mvc and entity framework and If I want to modify some functionalities and add some relationships with tables then what should I do.

Thanks

It depends on what version of EF your using and if you are using code first or database first. 

This site has great tutorials that take a step by step approach which includes how add fields and relationships using EF in an MVC application. It would start here then apply what you learn to the current issue.  

https://docs.microsoft.com/en-us/aspnet/mvc/overview/getting-started/getting-started-with-ef-using-mvc/creating-an-entity-framework-data-model-for-an-asp-net-mvc-application

Answer 3

User-707554951 posted

Hi manumvc,.

manumvc

If I want to modify some functionalities and add some relationships with tables then what should I do.

You description seems not clear, So, would you please provided more concrete description about your problem?

As mgebhard mentioned,  you use code first or database first.

For code first, if you want to modify the relationship between two tables or add other filed to model.

You could modify your model directly, Then you need to add migration in Package Manager Console

https://blogs.msdn.microsoft.com/webdev/2013/11/01/tips-when-making-changes-in-entity-framework-code-first-models-after-scaffolding/

https://msdn.microsoft.com/en-us/library/jj591621(v=vs.113).aspx

If you use database first, you need to alter you table design in database, Then Right click on the designer surface of the EDMX designer and click Update Model From Database.

https://technet.microsoft.com/pt-br/library/cc716697(v=vs.100).aspx

Best regards

Cathy