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LINQ to Dynamics 365 Business Central Data

LINQ provides general-purpose query facilities in .NET Framework 3.0 and above and provides one easy way to programmatically access data through from CData ADO.NET Data Providers. This example uses LINQ to access information from the Dynamics 365 Business Central Data Provider.

This article demonstrates how to use LINQ to access Dynamics 365 Business Central tables through the CData ADO.NET Data Provider for Dynamics 365 Business Central. To do this you will LINQ to Entity Framework, which is used to generate the connection and can be used with any CData ADO.NET Data Providers to access data via LINQ.

See the help documentation for a guide to setting up an EF 6 project to use the provider.

  1. In a new project in Visual Studio, right-click on the project and choose to add a new item. Add an ADO.NET Entity Data Model.
  2. Choose EF Designer from Database and click Next.
  3. Add a new Data Connection, and change your data source type to "CData Dynamics 365 Business Central Data Source".
  4. Enter your data source connection information.

    To authenticate to Dynamics 365 Business Central, you must provide the User and AccessKey properties.

    To obtain the User and AccessKey values, navigate to the Users page in Dynamics 365 Business Central and then click on Edit. The User Name and Web Service Access Key values are what you will enter as the User and AccessKey connection string properties. Note that the User Name is not your email address. It is a shortened user name.

    To connect to data, specify OrganizationUrl. If you have multiple companies in your organization, you must also specify the Company to indicate which company you would like to connect to. Company does not need to be specified if you have only one company.

    Below is a typical connection string:

    OrganizationUrl=https://myaccount.financials.dynamics.com/;
  5. If saving your entity connection to App.Config, set an entity name. In this example we are setting D365BusinessCentralEntities as our entity connection in App.Config.
  6. Enter a model name and select any tables or views you would like to include in the model.

Using the entity you created, you can now perform select, update, delete, and insert commands. For example:

D365BusinessCentralEntities context = new D365BusinessCentralEntities(); var accountsQuery = from accounts in context.Accounts select accounts; foreach (var result in accountsQuery) { Console.WriteLine("{0} {1} ", result.Id, result.accountid); }

See "LINQ and Entity Framework" chapter in the help documentation for example queries of the supported LINQ.