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Maximum datawindow expression/computed field length.
  1. Misc
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  1. Mark Jones
  2. PowerBuilder
  3. Wednesday, 15 February 2023 04:07 PM UTC

Does anyone know what are the limitation on size of expressions (e.g. visibility,  computed fields, protect) on datawindows? And, what if you have multiple long expressions on the same datawindow? 

I have been fooling around with a very long protect expression (28k) and it makes the datawindow unstable.   I can edit the datawindow and insert the expression with no errors but when I save the datawindow it crashed PB and the object ends up as garbage in the PBL.   W We allow our customers to create their own datawindows via our application and we need to put reasonable constraints on what they can enter (right now our limit is 2K per field) .  I cannot find any documentation that says what are the actual property expression size limits.

 

Thanks,

   Mark

 

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