>When I change the DataGridView BindingSource and BindingSourceMember to "MyTable" and "MyTable.DefaultView", the nav buttons navigate in the grid, but the Properties page isn't updated.

Ah. I'm a winforms newbie.

I changed the BindingSourceMember all the controls on the properties page to use "MyTable.DefaultView.[column]". The properties page now updates correctly when using the nav buttons.