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.If the same window will be used for the form to update a record and add a record, then the Accept button will be the single button to start the task.
NET framework 3.5 and for earlier framework version, you will have to use ‘Remove’ method instead of ‘Delete On Submit’ method.
For Removing More than one database records, follow the code example below: To edit data, simply first, we will have to retrieve the objects(rows) and make changes to them wherever needed.
I'll also show how we can cleanly integrate business rules and custom validation logic with our data model.
In Part 2 of this series I walked through how to create a LINQ to SQL class model using the LINQ to SQL designer that is built-into VS 2008.
Today, in this tutorial, I will try to give some more examples on other types of database operations, that writes/updates the database.