How can I use LINQ with Entity Framework in ASP.NET Core?

How can I use LINQ with Entity Framework in ASP.NET Core?

You can use LINQ to query your database in ASP.NET Core by utilizing the DbContext class. For example, you can write queries like context.Users.Where(u => u.IsActive).ToList(); to get all active users.

What are the benefits of using LINQ with Entity Framework?

LINQ provides a more readable and concise way to query data, allows for compile-time checking of queries, and integrates seamlessly with C#.

Can you show me an example of a complex LINQ query?

Sure! Here's an example: var result = context.Orders.Include(o => o.Customer).Where(o => o.Total > 100).Select(o => new { o.Id, o.Customer.Name, o.Total }).ToList(); This retrieves orders with a total greater than 100 along with customer names.

How do I handle null values in LINQ queries?

You can use the null-coalescing operator ?? to provide a default value or use Where to filter out nulls. For example: context.Users.Where(u => u.Email != null).ToList();