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VB.NET Linq To SQL Data not showing in DataGrid (Winforms)

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Last Modified: 2015-04-26
Working on a simple form.  At least I thought.  Need to capture payments for an accounting system and I'm trying to use link for the first time.  Following "Linq in Action" to help me.  

1.  I added my Linq to SQL class (easy enough)
2.  Added the table I needed to the dbml (easy enough)

I go to write code from the examples I see and my grid is totally empty.

'Get Data from database
Dim db As New PurchaseOrderDataContext
Dim query = From aPO In db.PurchaseOrders
                      Select aPO
'Set results to Grid
Me.dgPayments.DataSource = query

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I haven't gotten to the ability to add debits and credits via LINQ yet.  Any idea why I'm not seeing any data?
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