How to turn off "AutoGenerate" of columns when a DataGridView is data-bound

I have a Windows form that has a DataGridView on it.  I have bound the DataGridView to show data, that I specifed,  from the database (I defined the cells that I want to see through the property page).  But, the DataGridView is showing the cells I defined AND the data being returned from the dataset.

So, the question - what property do I set to turn off the default columns being returned from the dataset?  With a web app, there is an "AutoGenerate Columns" that you set to true or false.  What's the WinForm equivalent?

Thanks,

Dexter