Updating with linq

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.

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For more information on type-converters please review either of the following article: MSDN: How to Implement a Type-Converter Older Release The Query Release Tuesday, 13 November 2007 This release provides a real focus on the querying abilities of the LINQ to Lucene project and is the first real 'working release', converting LINQ statements to Lucene queries with deferred query execution and object creation or projection.

It culminates the majority of the required querying features for LINQ that Lucene provides natively.

Feedback Your feedback and thoughts on LINQ to Lucene are vital to guiding the direction of this project.

Please submit your feedback, feature suggestions and bugs into the Issue Tracker or Discussion Forum Blog Posts Here are some useful links that demonstrate the use of LINQ to Lucene: Current Release Linq To Lucene v0.61 Monday, April 2, 2012 Azure Blob Support for both Lucene indexes and entities in binary files Azure Tables Support for both Lucene indexes and entities in binary files Older Release Linq To Lucene v0.6 Monday, March 26 2012 Much refactoring and...

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.Each instance of a class entity represents a row within the database table.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.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 would probably pass in the customer log as a parameter to the method and then have it deal with just the database insertion.

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