>I have seen apps with a dropdown in a grid, how does one do that?

1. Select the column in the grid
2. Click the "combo" control and drop it into the cell.
3.1 If you don't want the text box control in the column, select it from the properties window then click on the grid in the form and press DEL.
3.2 If you just want to keep the text control then just change the "currentcontrol" property to Combo in Column.