PowerBuilder ‘Gotcha’ – Strings, Describe and Position Attributes

Posted on Thursday, September 6th, 2012 at 6:40 pm in

So I’m getting the position attributes of a column in a datawindow to aid in the display of another visual object.

What I initially coded was this:

ll_open_x = Long(adw.describe(as_colname + '.X') + &
 adw.describe(as_colname + '.height')) + 10

I run the window and my visual object is no where to be seen.

Looking in the debugger I see that ll_open_x is being set to 72270!

Fixed code is this:

ll_open_x = Long(adw.describe(as_colname + '.X')) + &
 Long(adw.describe(as_colname + '.height')) + 10

Since the Describe method always returns a string the values ’72’ and ‘270’ were simply being concatenated prior to being converted to a long.

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