i have an error which says DataTable not defined. what do I have to do to solve it.

the code i have is

Dim SupplierConfirm As Supplier.SuppliersDataTable

Dim ConfirmSupplier As Supplier.SuppliersDataTable

GetTable method. This method simply instantiates a new DataTable reference, adds four column collections to it, and then adds five drug and patient records.http://www.dapfor.com/en/net-suite/n.../data-grouping

Here's another thought. In addition to doing your Edit form as you do now why not allow us to define an edit form with straight HTML and you pop that form up instead? This way the clunky css to position fields is lost and we will have complete freedom on how the form looks. The form would be populated as at present.
This thought came to me because I now want to put boxes around related fields and maybe change background color. I haven't tried yet but I suspect this is going to take some doing.
BTW I am suprised that the formating of an edit form hasn't reared it's ugly head before this as it is a basic requirement of any commercial app.