c# - EF6 : AddRange throws exception -

i trying use addrange method create bulk insert db.

this :

    public virtual ienumerable<e> insertrange(ienumerable<e> entities)     {         context.set<e>().addrange(entities);          if (isautosave)             context.savechanges();     } 

when call savechanges() exception saying:

conflicting changes detected. may happen when trying insert multiple entities same key. 

i think problem might in model. id column, pk , identity of type int, cause new entities id=0. can solve that?

thanks, matan

maybe can try disable ef tracking - whatever need, save changes , enable back. increase performance of insert operation.

so, before calling method insert , save changes add this:

context.configuration.autodetectchangesenabled = false; 

and when done enable back:

context.configuration.autodetectchangesenabled = true; 

i hope you.