Get Record ID in Entity Framework after insert

Question

I\'m developing an ASP.net application using Entity Framework. I\'m using DetailsView to insert data into database. There is a table as Client and its

Answer 1

Following the call to _dbContext.SaveChanges(), the entity will automatically be updated with its new identity field value.

The following code assumes your Entity Framework entity container name is MyEntities, and your database's Client table has at least the two following fields:

client_id   int identity
client_name varchar(25)

Your code might look something like this:

// Establish DbContext
private readonly MyEntities _dbContext = new MyEntities();

// Create new client table entity and initialize its properties
var clientEntity = new Client { client_name="MyCo" };

// Add it to the ORM's collection of Client entities
_dbContext.Clients.Add(clientEntity);

// Save the new entity to the database
_dbContext.SaveChanges();

// Return the identity field from the existing entity,
//   which was updated when the record was saved to the database
return clientEntity.client_id;