AssociationElementTypeMissingException Class
An exception that is thrown when the elementType parameter is not specified in the AssociationAttribute attribute.
Namespace: DevExpress.Xpo.Exceptions
Assembly: DevExpress.Xpo.v24.1.dll
NuGet Packages: DevExpress.Win.PivotGrid, DevExpress.Win.TreeMap, DevExpress.Xpo
NuGet Package: DevExpress.Xpo
Declaration
Remarks
When specifying the AssociationAttribute for a collection property you need to specify the attribute’s elementType parameter. This should identify the type of items stored in the current collection. If this parameter is omitted an AssociationElementTypeMissingException exception is raised.
Solution:
- add the elementType parameter to the AssociationAttribute attribute.