On Fri, 2010-06-18 at 20:10 -0700, Erickson wrote:
> hello, i had this error "Operation is not valid due to the current
> state of the object" when trying to query using
> "context.SystemUsers.Single" but when using "context.SystemUsers" all
> records are retrieve
Documentation:
http://msdn.microsoft.com/en-us/library/bb155325.aspx
Summary:
Returns the only element of a sequence, and throws an exception
if there is not exactly one element in the sequence.
Exceptions:
InvalidOperationException:
The input sequence contains more than one element.
-or-
The input sequence is empty.
Sounds like there is more than one row in context.SystemUsers, so
context.SystemUsers.Single() is (appropriately) throwing an exception.
- Jon
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