Specifying the listing order for information object columns
By default, the Available Data pane in BIRT Studio displays the columns in an information object in alphabetical order, rather than in the order in which they appear in the IO Design perspective. You can specify a different order using the DATAFIELDS_DISPLAY_ORDER parameter in web.xml. web.xml resides in the following location:
<context root>\WEB-INF
For example, if you want information object columns to appear in the same order in which they appear in the IO Design perspective, uncomment the DATAFIELDS_DISPLAY_ORDER parameter, and set it to none:
<context-param>
  <param-name>DATAFIELDS_DISPLAY_ORDER</param-name>
  <param-value>none</param-value>
</context-param>
You can also set DATAFIELDS_DISPLAY_ORDER to ascending or descending. The default value is ascending.
Restart the appropriate Windows service for the change to take effect.

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