[Openroad-users] Accessing dynamically created fields

[James Higson]

Hi Chris,
 
I need to display different fields in each row of the "tablefield".  The
table is a set of questions where each question can have a ReadioField
answer, or an OptionField answer, or an EntryField answer.  If I use a
TableField, making two of these fields invisible affects all the rows; not
to mention the need to show a different set of items in each OptionField.

  _____  

From: openroad-users-bounces at peerlessit.com
[mailto:openroad-users-bounces at peerlessit.com] On Behalf Of Chris Wallace
Sent: Monday, 3 September 2007 09:34
To: James.Higson at gui-tek.com.au; International OpenROAD Users
Subject: Re: [Openroad-users] Accessing dynamically created fields



James,

 

Can we take a step back.  Why are you mimicking a Tablefield?  The problem
you currently have with the work-around you are trying, but what's the
problem with Tablefields that has caused you to try this work-around?

 

Regards

Chris Wallace
Management Information Systems (WA) Pty Ltd
Level 9, MIS House
231 Adelaide Terrace, PERTH  WA  6000
Ph: (08) 9221-9221  Fax: (08) 9221-9224
Email: chrisw at miswa.com.au
Web: http://www.miswa.com.au <http://www.miswa.com.audisclaimer/> 

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  _____  

From: openroad-users-bounces at peerlessit.com
[mailto:openroad-users-bounces at peerlessit.com] On Behalf Of James Higson
Sent: Monday, 3 September 2007 06:52
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

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