Ready to get started?

Learn more about the CData ADO.NET Provider for Dynamics CRM or download a free trial:

Download Now

LINQ to Dynamics CRM 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 CRM Data Provider.

This article demonstrates how to use LINQ to access Dynamics CRM tables through the CData ADO.NET Data Provider for Dynamics CRM. 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 CRM Data Source".
  4. Enter your data source connection information.

    The connection string options meet the authentication and connection requirements of different Dynamics CRM instances. To connect to your instance, set the User and Password properties, under the Authentication section, to valid &service; user credentials and set the Url to a valid Dynamics CRM server organization root. Additionally, set the CRMVersion property to 'CRM2011+' or 'CRMOnline'. IFD configurations are supported as well; set InternetFacingDeployment to true.

    Additionally, you can provide the security token service (STS) or AD FS endpoint in the STSURL property. This value can be retrieved with the GetSTSUrl stored procedure. Office 365 users can connect to the default STS URL by simply setting CRMVersion.

    Below is a typical connection string:

    User=myuseraccount;Password=mypassword;URL=https://myOrg.crm.dynamics.com/;CRM Version=CRM Online;
  5. If saving your entity connection to App.Config, set an entity name. In this example we are setting DynamicsCRMEntities 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:

DynamicsCRMEntities context = new DynamicsCRMEntities(); var accountQuery = from account in context.Account select account; foreach (var result in accountQuery) { Console.WriteLine("{0} {1} ", result.Id, result.FirstName); }

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