Re: How do you test if a property is empty
Re: How do you test if a property is empty
- Subject: Re: How do you test if a property is empty
- From: Barry Wainwright <email@hidden>
- Date: Mon, 19 Jan 2009 16:57:34 +0000
On 19 Jan 2009, at 16:17, Paul Taylor wrote:
Hi how do you test if a property is empty, Im trying to copy a value
from one object to another but its fail if the property has not been
set in the original object , Ive tried variuos checks such as is
empty, !=, is missing and none of them have worked
(or compiled in most cases)
if(played date of orig_track is not empty)
set played_date_val to played date of orig_track
set played date of new_track to played_date_va;
end if
try
get played date of orig_track
set played_date_val to played date of orig_track
set played date of new_track to played_date_val
end try
if there is no 'played date' of orig_track an error will be triggered
and programme execution will continue from after the 'end error'
statement. If there is a value to be 'got', then the property
assignments will be executed.
--
Barry
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