entity framework 4 - Unable to cast object of type to type 'System.Data.Objects.ObjectContext -


i have been following tutorial -> http://www.asp.net/web-forms/tutorials/getting-started-with-ef/the-entity-framework-and-aspnet-getting-started-part-2

i'm stuck in topic - revising entitydatasource control markup improve performance. when set contexttypename property removing connectionstring , defaultcontainername, i'm getting error message;

unable cast object of type 'contosouniversity.dal.schoolentities' type 'system.data.objects.objectcontext'.

please note: using connectionstring , defaultcontainername works fine.

try link msdn article below solved problem when going through same tutorial.

msdn article!

just change schoolcontext schoolentities in method schoolcontextentitydatasource_contextcreating()

best regards,

adit malik


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