[Openroad-users] Accessing dynamically created fields

[James Higson]

Thanks Chris, this has proven to be very helpful.  I had only glanced at
this thread when it was discussed the other week.  I never thought it would
be so relevant to my problem.  I have managed to implement a floating
OptionField and a floating RadioField which I am using as in the example.

  _____  

From: Chris Wallace [mailto:chrisw at miswa.com.au] 
Sent: Monday, 3 September 2007 10:28
To: James.Higson at gui-tek.com.au; International OpenROAD Users
Subject: RE: [Openroad-users] Accessing dynamically created fields



James,

 

Attached is an example of how you can vary an Optionfield's options in a
tablefield, this could be modified to just as easily (base on a hidden
column value) display a different field type (ie. Checkbox, RadioButton)
etc. rather than an optionfield.

 

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 07:48
To: 'International OpenROAD Users'
Subject: Re: [Openroad-users] Accessing dynamically created fields

 

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/> 

Disclaimer:  Management Information Systems (MIS)
This e-mail is private and confidential. If you are not the intended
recipient, please advise us by return e-mail immediately, and delete the
e-mail and any attachments without using or disclosing the contents in any
way. The views expressed in this e-mail are those of the author, and do not
represent those of MIS unless this is clearly indicated.  You should scan
this e-mail and any attachments for viruses.  MIS accepts no liability for
any direct or indirect damage or loss resulting from the use of any
attachments to this e-mail.

  _____  

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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