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Eager loading is the process whereby a query for one type of entity also loads related entities as part of the query. Eager loading is achieved by use of the Include method. The Include () method works quite well for Lists on objects, but what if there is a need for multiple levels of depth. Now EF Core 5.0's Filter Include method now supports filtering of the entities included.

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It can be used to retrieve some information from the database and also want to include related entities. Now let's say we have a simple model which contains three entities.

Include - SLU

Ef Samisk Konsthantverk Silversmide och Horn & T has 1 employees at this manufacture a wide variety of goods; major product groups include food and.

Because the Include method returns the query object, you can call this method multiple times on an ObjectQuery to specify multiple paths for the query, as in the following example: // Create a SalesOrderHeader query with two query paths, // one that returns order items and a second that returns the // billing and shipping addresses for each order. Just understand that when you use Include, ef will select ALL the fields in that table, which is not very optimized.
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Eager loading is the process whereby a query for one type of entity also loads related entities as part of the query.

It can be used to retrieve some information from the database and also want to include related entities. Now let's say we have a simple model which contains three entities. Eager loading is achieved by use of the Include method. The Include () method works quite well for Lists on objects, but what if there is a need for multiple levels of depth.
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We need to supply the navigational property of the related entity as the argument. The next version of EF Core will also support the filtering & Ordering of the related data.

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Ef Samisk Konsthantverk Silversmide och Horn & T has 1 employees at this manufacture a wide variety of goods; major product groups include food and.

Now when you execute the above example, you will see that it will retrieve the customer with id equal to 1 and will include all the invoices. That is because the where clause is just acting on the customer but not on Invoices. EF: Include with where clause.