How to insert or UPDATE operations in LINQ to SQL?
Once we commit our changes, LINQ to SQL will translate our actions from LINQ to SQL and commit our changes to the database. The following is the syntax for the insert, update, or delete operations used in LINQ to SQL.
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Do you need to add logic to LINQ to SQL?
LINQ to SQL will not automatically manage consistency between related objects. So you need to add logic to your classes so they know how to update their relationships on their own. In our M:1 classes, we want to be able to traverse the object model from both directions.
What are the benefits of LINQ to SQL?
LINQ to SQL offers the greatest flexibility in manipulating and persisting the changes you make to your objects. As soon as the entity objects are available (either by retrieving them through a query or by building them anew), you can change them like typical objects in your application.
How to add/update/delete data in LINQ?
Add/Update/Delete data in your database through your classes using LINQ to SQL. Make sure your M:M, 1:M, and M:1 ratios stay in sync* while doing these adds/updates/removals. The article walks through each of these steps to explain how you can do this in your own applications.
What do you do with LINQ to SQL?
LINQ to SQL translates our actions to SQL and sends the changes to the database. Here we will perform Select, Insert, Update and Delete operations on a COURSE table.
How to edit and update data in LINQ?
Edit/update data with LinQ to SQL: To edit data, simply first, we’ll need to retrieve the objects (rows) and make changes to them as needed. Then just use the ‘SubmitChanges’ method to commit the changes to the database.
How to update all objects in a collection using LINQ?
ToList is needed to evaluate the selection immediately due to lazy evaluation. ListOfStuff.Where (w => w.Thing == value).ToList ().ForEach (f => f.OtherThing = valueForNewOtherThing); I’m not sure if this is overuse of LINQ or not, but it worked for me when I wanted to update specific items in the list for a specific condition.