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Saturday, February 15, 2014

No mapping specified for instances of the EntitySet and AssociationSet in the EntityContainer AtgDataCombinedViewEntities



Here we will discuss how to resolve one entity framework error in Asp.Net. The full error message which comes as:

No mapping specified for instances of the EntitySet and AssociationSet in the EntityContainer AtgDataCombinedViewEntities.

Solution:
From data layer we return an entity. If that entity is combination of multiple entities & created manually, this error will come.

Create a Complex Type instead of entity.

Also you can check out some posts on:

- How to display serial number automatically in GridView in asp.net?

- Data files and Log files in sql server 2008

- Tutorial on MVVM with WPF





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