ObjectContext.Dispose Method ()
Releases the resources used by the object context.
Assembly: System.Data.Entity (in System.Data.Entity.dll)
This method closes the connection if it was opened by the Entity Framework. After Dispose is called, operations that require an open connection, such as executing a query or calling theToTraceString method, will cause an exception. Operations that do not require an open connection, such as composing a query or attaching objects, will not cause an exception. The method does not close any explicitly opened connections.
The Dispose(Boolean) method.method calls the virtual (Overridable in Visual Basic)
Available since 3.5