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RE: UI Control binding Expression

From: Micah Dubinko <MDubinko@cardiff.com>
Date: Fri, 4 Oct 2002 16:58:28 -0700
Message-ID: <E840F0B7E6189547BDB91DA8BF2228AB28C7DC@csmail.cardiff.com>
To: "'bhanu'" <bhanu_k@hotmail.com>, www-forms@w3.org

>So if I am reading this correctly, the processor should treat UI controls
differently when a UI Control does not have a binding expression vs. when a
UI control does have a binding expression but points to a node that does not
exist.

I believe that is correct. Anyone feel free to jump in if I'm mistaken.

.micah


-----Original Message-----
From: bhanu [mailto:bhanu_k@hotmail.com]
Sent: Wednesday, October 02, 2002 2:45 PM
To: www-forms@w3.org
Subject: UI Control binding Expression


As per Section 4.2.5 (xforms-form-control)
   
If the instance referenced on the form control existed when the first
xforms-form-control-initialize event was processed
 
1. The binding expression is evaluated to ensure that it points to a node
that exists. If this is not the case then the form control should behave in
the same manner as if it had bound to a model item with the relevant model
item property resolved to false.
 
 
As per Section 8.1.8 (trigger Control)
 
Data Binding Restrictions: Binds to any node. This form control does not
directly interact with form data, but is affected by model item properties
of the bound node, thus binding attributes are not required.
 
 
So if I am reading this correctly, the processor should treat UI controls
differently when a UI Control does not have a binding expression vs. when a
UI control does have a binding expression but points to a node that does not
exist.
 
 
Regards
 
Received on Friday, 4 October 2002 19:58:34 GMT

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