because it has a DefiningQuery and no element exists in the element

The issue due to missing of Primary key in the table. When EF mapping is done with a table which doesn't have Primary key, it is considered as a view & views being logical entity, cant be updated. So either add the missing primary key in your tables or consider them as View & don't perform any update operation on them. Go through below link how to implement Primary key in EF: http://www.codeproject.com/Articles/813912/Create-Primary-Key-using-Entity-Framework-Code-Fir

Answer

How to clear in Error

barathi raja

650

because it has a DefiningQuery and no <InsertFunction> element exists in the <ModificationFunctionMapping> element

Answers (1)

Forum Statistics

Please welcome our newest member Denise Chin.
3,096,224 users have contributed to 147,391 threads and 483,654
In the past 24 hours, we have 1 new threads, 5 new posts, and 116 new users.
In last week, the most popular thread is 'How do generations (Gen0, Gen1, Gen2, LOH) work in .NET GC?'.

Upcoming Events

View all

Secure External Access: Configure Microsoft Entra ID for Power Pages - Microsoft Business Application: Ep.33
AI Agents Conference - 2025