Earlier this week I was doing a presentation and since the company I presented for had mostly winforms developers I wanted to convert all my ASP.NET debugging demos to winforms equivalents for the presentation.
As I was converting my first demo (a performance issue) I ran into a bit of a snag because the first time I ran the demo (which populates 4 datagridviews with product information) things worked fine. I clicked the Featured Products button, my datagrids were nicely filled, I could reproduce my performance issue and debug it.
The second time I clicked the button to reproduce the issue however I was met with this:
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