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1. C3 EF JOIN OBJECTS FROM DIFFERENT CONTEXTS HOW TO
2. C3 EF JOIN OBJECTS FROM DIFFERENT CONTEXTS INSTALL
3. C3 EF JOIN OBJECTS FROM DIFFERENT CONTEXTS CODE

Hope it will be helpful somewhere someday.

C3 EF JOIN OBJECTS FROM DIFFERENT CONTEXTS HOW TO

It's very simple in use, we just need to understand how to implement this. Now I run the sample application and press F5.

C3 EF JOIN OBJECTS FROM DIFFERENT CONTEXTS INSTALL

We can then install the CLI tools to our solution locally. config directory with a dotnet-tools.json file. From the solution folder, we can run the following dotnet command.

C3 EF JOIN OBJECTS FROM DIFFERENT CONTEXTS CODE

You can see the code snippet in the above diagram states that we are using an inner join on two tables, Orders and OrderDetails, and return the result to the view (that is of type OrderModel having the following code snippet). To install the tool locally for each solution, we first need to create a tool manifest. Now open the RegisterController class file and write my code in Action "Verify" also as shown in the following image: This table contains information about student information. WILMODBContext is the context for the following model. In this example, I use the following two tables of two different databases. For creating the Entity Framework model click here. Now let's proceed further and get to the core topic to use Joins with Entity Framework. Step 1 First of all, create two contexts that refer to two different databases. These are the very basic steps to create an entity object from an existing database as shown above. Select the required database objects as per your needs and click on the "Finish" button.Īn edmx file will be added into the solution as per the image show under the following: Select "Generate from database" and click "Next" the following window will appear:Ĭlick on "New Connection" and fill in the required details as shown in the following image to connect with the server (in this for example I have used "local DB Server").Ĭlick on "Test Connection" to verify that the connection has been established.Ĭlick "Next", the following window will appear: Right-click on the Model folder and proceed as shown in the following screenshot:Ĭhoose "Visual C#" => "ADO.NET Entity Data Model" then provide the name as you need to (for exampleNorthwind.edmx) as in the following:Ĭlick "Add" then a new window will appear as in the following: Create a sample MVC application and follow the procedure below.ġ. Kindly follow the following procedure to create a DBContext.

We need to create DB Context object to understand the fact and advantages, so let's create a. I will use a sample application to demonstrate this feature. In this article I am sharing how to use joins in Entity Framework with a DB context and a LINQ query.

NET Framework collections, SQL Server databases, ADO.NET Datasets, and XML documents. Visual Studio includes LINQ provider assemblies that enable the use of LINQ with. If It does have a navigation props - then use Include. LINQ introduces standard, easily-learned patterns for querying and updating data, and the technology can be extended to support potentially any kind of data store. If the DB does not include a Foreign Keys -it has no navigation props so its better to use Join. Language-Integrated Query (LINQ) is a set of features introduced in Visual Studio 2008 that extends powerful query capabilities to the language syntax of C# and Visual Basic.