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LINQ to Share Point is a new feature of Share Point 2010.
LINQ stands for Language Integrated Query which is a part of the . The purpose of LINQ is to support various data sources using the same Typed Query Syntax.
Step 1: Create a COURSE Table in the database Step 2: Create a Context Data file using the Object Relational Designer: Create a new item, select the LINQ to SQL classes (as shown in the following figure) and name it
After clicking the Add button the Context Data file is created.
Now we should drag all the tables onto the left-hand side of the designer and save (as shown in the following figure).
This will create all the mappings and settings for each table and their entities.
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Developers using Visual Studio typically use the Object Relational Designer, which provides a user interface for implementing many of the features of LINQ to SQL.In LINQ to SQL, the data model of a relational database is mapped to an object model expressed in the programming language of the developer.When the application runs, LINQ to SQL translates into SQL the language-integrated queries in the object model and sends them to the database for execution.For files the database connection string is defined in the web.config file as: We can use a connection string from the web.config file or we can pass a connection string as a parameter in the constructor of the Data Context class to create an object of the Data Context class.The SELECT Operation Conculsion To perform select, insert, update and delete operations we create a table and create a data context class; in other words a dbml file.
In this file designer view we drag and drop the COURSE table from the Server Explorer.