I have a browse dialog and want to show a datepicker in but it's only showing as a textbox. I have made sure that the field in the database is of datetime and that is was mapped successfully in the business object. I have tried it on another browse dialog with the same results. Any ideas?

The BrowseDialog will automatically show a date time picker for any field type of a DateTime.  So the only reason you would not be getting a date/time picker is if your BO property that the field represents is not of a DateTime data type.

The above image shown is representing the cust_Created field on the Customers BO in the VB.NET tutorial.  I went in and created a browse, added the cust_Created field to the SearchFields collection, associated the BrowseDialog with the MaintenanceFormToolstrip and ran and received the results above.  Below is a screen shot of the strong-typed property of the field which can be found in the designer.vb file of the BO.