Dependent Combobox in a Datasheet in Access?

Question

I\'ve created a dependent combobox as mentioned as this article. http://office.microsoft.com/en-au/access-help/basing-one-combo-box-on-another-HA001173058.aspx

However,

Answer 1

Unbound controls in a continuous form will only drive you insane. Consider modifying the underlying query to ensure that your combo is based on a bound column (field).