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Resolved How do we get a datawindow column sort to treat nulls as a low value?
  1. How-to
  2.  DataWindow
0 Votes
  1. Glenn Barber
  2. PowerBuilder
  3. Tuesday, 28 June 2022 01:30 AM UTC

We have a number of applications which present a data grid which allows the user to click on column headers to sort data (using the pfc service).

One issue is that nulls always sort to the top in datawindows - which can be really aggrevating when there is a lot of null data.

We dont want to fill all the date with dummy dates or empty strings.  

Is there a way to tell a datawindow to sort nulls to the top or bottom always?

Ideally have these many decades it would be great if Appeon put a "Sort Nulls As" feature in the column definition.  Maybe its there and I am unaware.

As I am using the pfc  and it essentially grabs the column name from the headername (extracting the -t) creating a setSort

I did some experimenting in the debugger and it looks like the Set Sort function may accept datawindow functions - so instead of

of_setSort ("mydate a")  

I can do

of_setSort ("If(IsNull(mydate, 1900-01-01, mydate) 

I never so this is an example in the documentation - is this supported?

 

PowerBuilder 2019 with Windows Server 2019 PB2021 Multi-target workspace one target crashes IDE when o...
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