![]() ![]() IQueryable query = from c in dbContext.CustomersĬonsole.WriteLine("Customer Id: ", od.UnitPrice.ToString("c")) NorthwindDbContext dbContext = new NorthwindDbContext() Finally, start iterating through the Customer, Order and OrderDetail objects. Then you need a LINQ query to load Customer objects from the database. In the first step, you need an OpenAccessContext instance. To fill the entity objects with data from the database, several steps are required. ![]() Suppose you have a generated Telerik Data Access Domain Model and you want to show the user all orders and order details for all customers. While this would still work, it is highly inefficient.Ĭonsider the database diagram below, where three tables from the Northwind database ( Customers, Orders and OrderDetails) are represented. By default traversing a collection of related objects would lead to the execution of an additional query for each object in the collection. Detecting Select N+1 problem usually means that the data fetch strategy of the application can be optimized. Select N+1 is a data access anti-pattern where the database is accessed in a suboptimal way. The current documentation of the Data Access framework is available here. This article is relevant to entity models that utilize the deprecated Visual Studio integration of Telerik Data Access. ![]()
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