Linq submitchanges not updating

Please use the database structure given below, if you want to try the following examples directly.

I am assuming, you already know how to create dbml/linq to sql classes: Being Lin Q as a ORM, it’s quite easy and sql syntax free way to insert data using Lin Q.

I'm not 100% sure about LINQ but i would say that the seperation is based on transaction control.

You apply any number of updates, inserts or deletes.

The Data Context is an object representation of the database.

It is responsible for all the operations performed on the database.

NET Framework 3.5 release, and which enables you to easily model relational databases using . You can use LINQ expressions to query the database with them, as well as update/insert/delete data.

Below are the first three parts of my LINQ to SQL series: In today's blog post I'll cover how we we can use the data model we created earlier, and use it to update, insert, and delete data.

That articles also covered for creating select query for retrieving both single and multiple results.We just need to create a new object of corresponding database table type, then add it to the Data Context object and then commit the changes. If you want to insert more than one row, then you will have to create a ‘List’ array object containing all the ‘User’ objects and then use ‘Insert All On Submit‘ method, it will work fine.Here is a small block of c# code samples to create new ‘User’ linq to sql class(Representing ‘Users’ Table in Database) and add it to ‘Users Data Context’ class(Represents the database) and commit the changes to original database by ‘Submit Changes'(without this, no changes will be reflected to database): For your information, the above code example is for . If you are using an earlier version, you will have to use ‘Add‘ method instead of ‘Insert On Submit‘ . Deleting data/row from database using linq is as simple as inserting data and this is also sql syntax free operation 🙂 .I am playing around with LINQ to SQL in conjunction with business objects.So rather than using LINQ directly in the front end UI I want an abstraction layer.Over the last few weeks I've been writing a series of blog posts that cover LINQ to SQL.

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