The 1:1 Association Is Based On a Backend Calculated Foreign Key Column

This article is relevant to entity models that utilize the deprecated Visual Studio integration of Telerik Data Access. The current documentation of the Data Access framework is available here.

This error occurs when the domain model contains an one-to-one association with backend calculated foreign key (source) column.

Solution

To resolve this error, either manually delete the association in the designer or set the Autoinc attribute of the column to False.

To set the Autoinc attribute of the column to False:

  1. Double-click the error to open the Validation Dialog.
  2. Apply the automatic fix for setting the Autoinc attribute of the column to False.

Further References