I typically use the dataenvironment to add tables to my forms, but in this case I need to do it programmatically. I have a public variable 'ddir' which points to the correct path of the tables and it is in scope at this time (I checked). I am trying to add tables to the dataenvironment of my form in the form's init method using the following code:

Thisform.Addproperty("oDataenv", Createobject("Loadtables"))
This.oDataenv.AutoOpenTables=.F.
This.oDataenv.AutoCloseTables=.F.

This.oDataenv.AddObject("Cursor1", "Cursor")

With This.DataEnvironment.Cursor1
.Alias = "PRNTCODE"
.CursorSource = ddir+"PRNTCODE.dbf"
.Order = "p_name"
EndWith

This.oDataenv.AddObject("Cursor2", "Cursor")
With This.DataEnvironment.Cursor2
.Alias = "CONTROL"
.CursorSource = ddir+"CONTROL.DBF"
.Order = "cn_name"
EndWith

This.oDataenv.AddObject("Cursor3", "Cursor")
With This.DataEnvironment.Cursor3
.Alias = "CTRLSET"
.CursorSource = ddir+"CTRLSET.DBF"
.Order = "cn_name"
EndWith

This.oDataenv.OpenTables()


However, when I do this, I get the error "Class Definition Load Tables is Not Found." It's been a while since I added cursors to a form programmatically, but I think this is how I did it in the past. Can anyone notice what's missing in my code?
Thanks to all in advance!
Tracy