Jim,

> Thanks for the response. I'm not getting the error message now at design time. When I run the webform there is no data in the dropdown. Do I have to somehow register my business object with the page? If so, how would I cast the page object within the dropdown to the mmBusinessWebPage page? I've attempted this, but the ParentForm property is an undefined value at runtime.

If you want to use automatic data binding then you do need to register the business object with the form. You may want to try this in the OnLoad() method of the control instead and use the Page property instead of the Parent property.

Regards,