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Master Detail CRUD Operations Using EF And ASPnet MVC 3 In C
now, we need to add the postcontroller class in controler folder. so, create a new class as postcontroller inside controler folder and then add the constructor to the postcontroller.cs file with the following code.
the create and read methods are very simple as they only will return the response data if successful. the update and delete methods will have additional information as it’s updating or deleting data from the database.
let us now create our first class productrepository as shown above. we will add all the code for the crud operations within this class.
an mvc project can contain only one repository for a domain class. we will use this repository class to perform all crud operations in this tutorial. this is because this tutorial is first of its kind. it will show how to use dapper to perform crud operations as well as how to map different entities to database and vice versa. we will create different crud operations as per the need.
now, add the code for the repository as shown below. in this tutorial, i will be using two queries to create, update, and delete the domain classes. you can also perform the above operations using one single query.
to perform crud operations we need a repository for all the domains related to a business/project as a single repository. this allows us to retrieve and update objects/documents related to a single table. it also makes it easier to perform unit testing. by this we can easily call the repository and perform all the crud operations using one single repository class.