[Openroad-users] Accessing dynamically created fields

[Bodo Bergmann]

James,
 
you can't reference the dynamically created fields using dynamic
expressions.
 
But anyway you can use the FieldByFullName approach to set the value of
the field:

    FieldPtr =
CurFrame.TopForm.FieldByFullName(FullName='r'+RIGHT('000'+VARCHAR(i),3))
);
    FieldPtr.SetFieldValue(value = a[i]);
 
Bodo.
 
Bodo Bergmann
Senior Software Engineer
OpenROAD Worldwide Development
Ingres Corp.
 


________________________________

From: openroad-users-bounces at peerlessit.com
[mailto:openroad-users-bounces at peerlessit.com] On Behalf Of James Higson
Sent: Monday, September 03, 2007 12:52 AM
To: 'International OpenROAD Users'
Subject: [Openroad-users] Accessing dynamically created fields


Hi all,
 
I am using OR4.1SP3.
 
I have a StackField object which has a datatype of a userclass.  I have
then created several instances of this StackField and grouped them into
a second StackField then grouped this into a ViewPort.  In effect, I
have mimmicked a TableField.  I am then dynamically appending instances
of the first StackField to the second StackField by duplicating the
first instance at runtime.  I hope you are following me so far.  The
instances are then named r001, r002, ... r00n.
 
I can reference the instances by using either:
    FieldPtr =
CurFrame.TopForm.FieldByFullName(FullName='r'+RIGHT('000'+VARCHAR(i),3))
), or;
    ExprPtr =
CurFrame.Scope.CreateDynExpr(String='r'+RIGHT('000'+VARCHAR(i),3))).
 
The problem I have, is that CreateDynExpr only works for the instances
of the StackField that were statically created on the form.  The
dynamically created instances return a NULL reference.  FieldByFullName
works for the dynamically created instances.  I want to set the
instances to a row in an array by using:
    ExprPtr =
CurFrame.Scope.CreateDynExpr(String='r'+RIGHT('000'+VARCHAR(i),3)));
    ExprPtr.SetValue(Value = a[i]);
 
I would have thought that CreateDynExpr should work for dynamically
created instances as well.  Can anyone see another way to do this?
 
Thanks,
James
Melbourne, Australia
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.peerlessit.com/pipermail/openroad-users/attachments/20070903/62749510/attachment.html