Frank,

> I read the information you suggested and attempted to follow it.
> However, in this case I'm working with a Windows form and need to include the dropdown list in the cells of a gridview on a Windows form, not a Web form.
> While the documentation you indicated is clear, it's for a Web form and doesn't match what I see when attempting to work with the grid on a Windows form. Is it possible to do this on a Windows form gridview? If so, what are my next steps? If not, what are my alternatives?

When you add a new column to a Windows Forms DataGridView, in the Add Column dialog's Type dropdown you can specify that you want to add a DataGridViewComboBoxColumn. Since this is a non-MM .NET control, you can use standard .NET data binding as described here:

http://msdn2.microsoft.com/en-us/library/system.windows.forms.datagridviewcomboboxcolumn.aspx

Best Regards,