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Home/ Questions/Q 996301
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Editorial Team
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Editorial Team
Asked: May 16, 20262026-05-16T06:51:25+00:00 2026-05-16T06:51:25+00:00

I got the error Cannot find the InsertFunctionMapping for EntityType ‘xxx’ in the mapping

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I got the error

Cannot find the InsertFunctionMapping
for EntityType ‘xxx’ in the mapping
file.

Which is fair enough because it is true. But that is because I am happy with EF doing inserts for me. I simply want to override the delete function.

I thought that was one of the improvements with EF4? Or is it just that it will build fine but still cry when you use the unmapped functions? Or is it possible but I am just missing something?

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  1. Editorial Team
    Editorial Team
    2026-05-16T06:51:25+00:00Added an answer on May 16, 2026 at 6:51 am

    AFAIK. It’s all or nothing.

    If you do not map all three of the insert, update, or delete operations of a entity type to stored procedures, the unmapped operations will fail if executed at runtime and an UpdateException is thrown.

    MSDN

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