How to solve this error when i Update the data.

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The element at index 0 in the collection of objects to refresh has a null EntityKey property value or is not attached to this ObjectStateManager.

Posted 16-Aug-11 10:11am

divesh12

Updated 16-Aug-11 12:53pm

Simon Bang Terkildsen

v3

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Herman<T>.Instance 16-Aug-11 16:24pm

maybe some source code would help?

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Simon Bang Terkildsen · Answer 1 · 2011-08-16T12:56:00

Solution 1

EntityKey and ObjectStateManager sounds like Entity Framework, well I've not seen that error and won't hazard a guess without source code but google your question yields alot of results discussing that error message.
Google[^]

Posted 16-Aug-11 12:56pm

Simon Bang Terkildsen

Updated 16-Aug-11 12:57pm

v3