Linq updating Quick local sluts to fuck
Below is a class model created for the Northwind sample database and which I'll be using in this blog post: When we designed our data model using the LINQ to SQL data designer above we defined five data model classes: Product, Category, Customer, Order and Order Detail.The properties of each class map to the columns of a corresponding table in the database.I'll also show how we can cleanly integrate business rules and custom validation logic with our data model.
When we defined our data model, the LINQ to SQL designer also created a custom Data Context class that provides the main conduit by which we'll query our database and apply updates/changes.Visual Studio includes LINQ provider assemblies that enable the use of LINQ with .NET Framework collections, SQL Server databases, ADO. by using the same query functionality that is available for other data sources.(Actually it had the column but the constraint was not copied when I did a SELECT INTO my dev table).The Data Context class requires a primary key for updates.