void ShowAllVar()
None
This method instructs the data table to display columns for all the variables in the associated DataObject.
declare DataObject dobj;
dobj = DataObject.CreateFromFile( "iris" );
declare DataTable dt;
dt = DataTable.Create( dobj );
names = { "petallen", "petalwid" };
dt.ShowVar( names, false );
dt.ActivateWindow();
pause "Click the Resume button to continue.";
dt.ShowAllVar();