$valuepart($labelproperties(fieldname)) sometimes returns 0

Author: jbrown@canberra.com (jbrown)

In Uniface 9.4, I would like to display the label of a field in a grid widget in an error message. I am using the following code: $$gbr_msg1 = "%%$valuepart($labelproperties(building_id.gbl_buildings))%%% cannot be blank". Sometimes errormsg contains the actual label text, but sometimes in place of the label text there is a 0 (0 cannot be blank). I haven't been able to figure out why the label value changes. By the time this code is reached, the execute trigger has completed (e.g. the Presentation layer is available).


  1. .. think you should use $item("text",$labelproperties(...)) instead of $valrep, to be more specific what you want property you want.

    Author: ulrich-merkel (ulrichmerkel@web.de)
  2. Your suggestion is definitely a better way of coding. However, now I just get "cannot be blank". In other words, the $labelproperties for the field does not have the label text in it. I even put a show statement directly prior to the $item("text",$labelproperties(...))  statement. It seems as if the $labelproperties is set on an existing occurrence but not a newly added occurrence.

    Author: jbrown (jbrown@canberra.com)
  3. .. so one option is to collect the label texts of all fields once when the component starts into a list and take the information from that list.


    Another question: have your labels a "repeat" or "repeat if not empty" attribute ?

    Author: ulrich-merkel (ulrichmerkel@web.de)
  4. Labels in entities or grids are by default set to "do not repeat". Therefore label values for subsequent occurences are set to 0. I would suggest to right click on a label, select label and the choose option "repeat"


    Author: Devyl (devy@compuware.com)