Entity framework database first best practice for managing a DB

Use of the Entity Framework with WPF DataBinding best practices

I don't believe a ToList() is necessary in this case, either. I suppose an IEnumerable, which families is, is required by ObservableCollection(). I believe that you will cycle over all of your data twice if you do a ToList and then feed it to the ObservableCollection....familyOC = new ObservableCollection<Family>(families.ToList()); ...Try this alt...

Entity validation best practices in ASP.NET MVC and ADO.NET Entity Framework

In a project, I'm utilizing ASP.NET MVC and ADO.NET Entity Framework. I want to use partial classes to add validation logic to my entities. It works similarly to how it is shown in the LINQ2SQL-using ...NerdDinner.com Application for ASP.NET MVC.... The primary difference is that, unlike LINQ2SQL, I must utilize the "OnPropertyChanging" event rathe...

master detail / multi table best practice/method Add to Entity Framework

It will be OK to continue as you are....If you want to allocate ode.Products without doing a database query, you might use the alternate method shown below:...// substitute your actual qualified entity set name ode.ProductsReference.EntityKey = new EntityKey("MyEntities.ProductsEntitySetName", "Id", 2); ...Although quicker, this is less readab...

Best Practices In Business Logic With Entity Framework?

It mostly relies on how you want to make your repository or data storage accessible....I'm unsure of your meaning when you say "the context will be closed, hence I cannot execute business logic." Do your business logic by employing the sentence ...inside.... Alternatively, if your business logic belongs to a different class, continue reading.:)...S...

Entity Framework is the best approach for implementing business logic validation.

I've noticed:...This method works, but it requires a lot of effort, and it may take longer when there are a lot of things to verify. Actually, EFv4.1 does this on its own....This approach doesn't work for sophisticated validation, where you must adjust several properties before you reach a valid state, and I don't like it since it only supports sin...

Best practices to perform CRUD operations on Entities (Entity Framework)

Business objects and data access should often be kept distinct. Consider the Repository Patterns ...here... and ...here.... You probably need this precisely as it is.

Best practice to lock a record for editing while using entity framework

I'm not sure exactly how to phrase this question, but here it is. In the project I'm working on, numerous client programs use a WCF service to access the same data source. Even though it might not be pertinent, the WCF service uses entity framework to access this data source. I would like to stop other clients from altering the same record whenever...

Create one to one relationship by using entity framework database first

It's not difficult to establish a 1:1 relationship, but I don't get why you would want one in this situation. It's not an usual demand, either. You are conversing with the incorrect people if this is what they are saying....However, as you seem to be doing, utilizing SQL queries has nothing to do with EF; rather, you are just interacting with the d...

What is the best practice for multiple "Include"-s in Entity Framework?

Write a single method GetCategoryById and send a list of relationships to include (maybe, but still seems not elegant enough)...Write methods like GetCategoryByIdWithBooks, GetCategoryByIdWithBooksAndBooksPages and GetCategoryByIdWithBooksAndAuthors (not practical)...My strategy at the moment is a combination of these two. Since I already know the ...

What is best practice for using Unity with Entity Framework in a MVC 4 application

container.RegisterType<IMyContext, MyContext>( new ContainerControlledLifetimeManager()) ...This is not good because it removes a singleton from the context. By doing so, you run the danger of concurrency problems caused by many requests sharing the same context, as well as uncontrollable memory consumption from the shared context....Instead,...