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Re: ExportToJSON
  1. How-to
  2.  JSON
  3.  PowerBuilder (Appeon)
0 Votes
  1. Sivaprakash BKR
  2. PowerBuilder
  3. Tuesday, 10 January 2023 06:14 AM UTC

Hello

PB 2022 build 1892

Need to export data from a datawindow to three different JSON string.

1.  All deleted rows
2.  All modified rows
3.  All inserted rows

For deleted rows:     dw_1.ExportJSON(Delete!, 1, 0, 1, 5)  Works!

For 2 & 3, there seems to be only one way.  To use

string dwcontrol.ExportJson( {DWBuffer dwbuffer,} boolean changedonly, boolean format )

The above command exports all data that have been either modified or newly inserted.   But I want these two data in two different JSON string, so that proper DML statements could be generated by the server side scripts.

The other way could be to process every row, check the row status and if that matches generate JSON for that row.  But performance wise ExportJSON seems better.  

Any solution?

dw_1.ExportJSON(DWBuffer dwbuffer, RowStatus rowstatus, boolean format) might do the work.  Is that command or similar one available?

Happiness Always
BKR Sivaprakash

 

Posted events run async ? Different Runtime Behavior Between PB2022 IDE and Deployed ....
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