InvalidOperationException when casting to array

[Rob Hedgpeth]

I'm getting an "InvalidOperationException" thrown when attempting to execute the following:

var items = new ServiceObject(unitOfWork).SelectAll()
              .GroupBy(i => new { i.Value1, i.Value2 })
              .Select(i => new ViewModelObject(i.Key.Value1, i.Key.Value2))
              .ToArray();

The exception details that "Only 2 of 3 projection result columns used." 

However, if I just attempt to load my "ViewModelObject" with just one value I have no issues.

var items = new ServiceObject(unitOfWork).SelectAll()
              .GroupBy(i => new { i.Value1, i.Value2 })
              .Select(i => new ViewModelObject(i.Key.Value1))
              .ToArray();

I'm probably missing something pretty obvious here, but am having a tough time debugging.

Thanks!

[Rob Hedgpeth]

I was able to get past the exception by modifying my code to the following:

var items = new ServiceObject(unitOfWork).SelectAll()
              .GroupBy(i => new { i.Value1, i.Value2 })
              .Select(i => new { j.Key })
              .Select(i => new ViewModelObject(i.Key.Value1, i.Key.Value2))
              .ToArray();

However, I'm not sure why this had made any difference.

[Serge]

Hi Rob Hedgpeth,

 I am sorry for not being helpful but as far as I can see the ServiceObject class and the LINQ implementation are not part of anything Telerik related, not to mention OpenAccess related.

Would you mind giving a little more details as to what the problem is and how it is related with OpenAccess. What are you trying to achieve and how. 

I am looking forward to resolving this issue, please get back to us with a little more information.

Greetings,
Serge
the Telerik team