What is DbSet class in Entity Framework?

A DbSet represents the collection of all entities in the context, or that can be queried from the database, of a given type. DbSet objects are created from a DbContext using the DbContext.

Does Entity Framework work with PostgreSQL?

Compatibility and Requirements dotConnect for PostgreSQL is compatible with the latest version of ADO.NET Entity Framework and Visual Studio. The following PostgreSQL version is required for Entity Framework to function properly: 8.0 or higher.

How do I turn off lazy loading in Entity Framework?

To turn off lazy loading for all entities in the context, set its configuration property to false….Rules for lazy loading:

context. Configuration.
context. Configuration.
Navigation property should be defined as public, virtual.

What is TEntity in C#?

Add(TEntity) Adds an object to the collection. Attach(IEnumerable) Defines relationships between an object and a collection of related objects in an object context.

What is difference between DbContext and DbSet?

Intuitively, a DbContext corresponds to your database (or a collection of tables and views in your database) whereas a DbSet corresponds to a table or view in your database.

Why do we use DbSet?

The DbSet Add method is used to add the given entity to the context with the Added State. When the changes are saved (i.e. when the SaveChanges method is called), the entity which is in the Added state is inserted into the database. Once the changes are saved into the database, the object state changes to Unchanged.

How PostgreSQL connect to MVC?

To connect to PostgreSQL, set the Server, Port (the default port is 5432), and Database connection properties and set the User and Password you wish to use to authenticate to the server. If the Database property is not specified, the data provider connects to the user’s default database.

When should you stop lazy loading?

WordPress, one of the top blogging platforms on the web, offers a lazy loading solution called Infinite Scroll. However, if you open a browser with multiple pinned tabs opened, the content on each tab won’t load until you click it. If you find this behavior unsuitable, try disabling Lazy Loading.

What is the use of lazy loading?

The benefits of lazy loading include: Reduces initial load time – Lazy loading a webpage reduces page weight, allowing for a quicker page load time. Bandwidth conservation – Lazy loading conserves bandwidth by delivering content to users only if it’s requested.

What is entity set?

Entity Set : An entity set is a collection or set of all entities of a particular entity type at any point in time. The type of all the entities should be the same.

What is difference between DbContext and ObjectContext?

The main difference between DBContext and ObjectContext is that DBContext is a wrapper of the ObjectContext and denotes the most commonly used features of the ObejctContext, while the ObejctContext is a part of the core Entity Framework API that allows performing operations on the database using strongly typed entity …

Which framework is better than Entity Framework?

With EF you can focus more on a domain first approach since the data layer is completely abstracted for you.

Transactions and rollbacks are managed for you.

It’s faster to develop with since you can get it up and running in seconds.

It gives you source control of any schema changes with the possibility to do rollbacks through a command.

How to create entity data model in Entity Framework?

Open Visual Studio 2010 > File > New Project. In the templates,select C#or VB,Windows > Console Application.

Right click on the ‘EFConsole’ project in Solution Explorer > Add > New Item. Select the Data Template > ADO.NET Entity Data Model and click Add.

The Entity Data Model Wizard appears.

What is the function of Entity Framework?

Entity Framework is Microsoft’s recommended data access technology for new applications.

ADO.NET seems to refer directly to the technology for data sets and data tables.

Entity Framework is where all of the forward moving investment is being made,which has been the case for a number of years already.

What are some alternatives to Entity Framework?

No indexes or bad indexes. Spend time desiging a good indexing strategy.

A bad schema . For example,please don’t use a nvarxhar max as a primary key in sql server.

Use foreign keys. Index the foreign keys.

Don’t put an index on every column in your tables.

Sprocs are your friends. Use them.

Optimize your queries. Don’t run a query that never returns data,yes,I have seen this.