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Problem with NULL Values using Datawindow Dot Notation assigning row data to nonvisual object in .NET Web Service Target
  1. Issue
0 Votes
  1. Arnd Schmidt
  2. PowerBuilder
  3. Wednesday, 26 June 2019 10:33 AM UTC

IIS (PB2017 R2 Build 1769).

In the application framework the usage of assigning the row data to a nonvisual object is quite often used.

IIS (PB2017 R2 Build 1769) we are facing problems with datawindow's dot notation.

Some Code here:

jn_cst_vor_umsatz_data lnv_data

lnv_data = adsv_data.Object.Data[ll_row]

//------------------------
// Some debugLog to check NULL vs. 0 
decimal ldec_umsa_umsa_blz_pa
ldec_umsa_umsa_blz_pa = adsv_data.GetItemDecimal ( ll_row , "umsa_umsa_blz_pa" )
This.of_DebugLog(SCRIPT_NAME, "umsa_umsa_blz_pa (via GetItemDecimal): " + This.of_StringNull(string(ldec_umsa_umsa_blz_pa)))
This.of_DebugLog(SCRIPT_NAME, "umsa_umsa_blz_pa (via object assignment): " + This.of_StringNull(string(lnv_data.idec_umsa_umsa_blz_pa)))
//------------------------

For values (that are set) the result is as expected:
2019-06-26 09:53:21 | DEBUG | jn_cst_vor_umsatz_fk | of_Validate(jn_ds) | 1 | umsa_umsa_blz_pa (via GetItemDecimal): 36050105 |
2019-06-26 09:53:21 | DEBUG | jn_cst_vor_umsatz_fk | of_Validate(jn_ds) | 1 | umsa_umsa_blz_pa (via object assignment): 36050105 |

But for NULL Values
2019-06-26 10:23:26 | DEBUG | jn_cst_vor_umsatz_fk | of_Validate(jn_ds) | 1 | umsa_umsa_blz_pa (via GetItemDecimal): NULL |
2019-06-26 10:23:26 | DEBUG | jn_cst_vor_umsatz_fk | of_Validate(jn_ds) | 1 | umsa_umsa_blz_pa (via object assignment): 0 |

So my questions are:

- Has anyone seen this error/behavior before?
- Is dot notation (object assignment) not supported for IIS WebService Deployment?
- Is that a bug in PB2017 R2 Build 1769?
- If this is a bug, was it already fixed in PB 2017 R3?

I added a small webservice application that shows the behavior. The Method of_check1 shows 0 vs. NULL in my current Environment (Remark:  There is no Chance for me to update my environment)

Any comments and hints are welcome!

 

Arnd

 

Attachments (1)
Test_dw_null_check_webservice.zip
PB2017 R3 Git Merge conflict CloseWithReturn when string is empty
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