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LINQ to Xero WorkflowMax 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 Xero WorkflowMax Data Provider.

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

    To connect to the WorkflowMax API, obtain an APIKey and AccountKey from Xero. This can only be done by contacting Xero support (https://www.workflowmax.com/contact-us).

    After obtaining an API Key and Account Key, set the values in the APIKey and AccountKey connection properties. Once these are set, you are ready to connect.

    Below is a typical connection string:

    APIKey=myApiKey;AccountKey=myAccountKey;
  5. If saving your entity connection to App.Config, set an entity name. In this example we are setting XeroWorkflowMaxEntities 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:

XeroWorkflowMaxEntities context = new XeroWorkflowMaxEntities(); var clientsQuery = from clients in context.Clients select clients; foreach (var result in clientsQuery) { Console.WriteLine("{0} {1} ", result.Id, result.Id); }

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