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Resolved I am using a drop down list box datawindow. How can I retrieve by value and get the display value?

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  1. Reynard Harrison
    Reynard Harrison
  2. PowerBuilder
  3. Wednesday, 19 July 2023 16:11 PM UTC

is this possible I am using a drop-down list box in a data window. How can I retrieve my data value which is also coming in from XML doc and get the display value in a variable?

 

 

 

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Reynard Harrison
Reynard Harrison Accepted Answer Pending Moderation
  1. Wednesday, 19 July 2023 17:45 PM UTC
  2. PowerBuilder
  3. # Permalink

Thank you John I think what I am asking is not possible I really want to pass the data value to the drop-down datawindow list box and get the display value. I think I have to use a two dimension array or create a table in the database.

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Roland Smith
  1. Roland Smith
  2. Wednesday, 19 July 2023 18:49 PM UTC
This will return the code table for a ddlb:



dw_control.Object.columnname.Values



The format of the string is the same as the datawindow source:



displayvalue1 tab datavalue1 forwardslash displayvalue2 tab datavalue2 forwardslash displayvalue3 tab datavalue forwardslash3
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Mark Goldsmith
  1. Mark Goldsmith
  2. Wednesday, 19 July 2023 18:58 PM UTC
Exactly...and if you want to pull out a single value and know the index I'm thinking GetValue() should do the trick.
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John Fauss
John Fauss Accepted Answer Pending Moderation
  1. Wednesday, 19 July 2023 17:34 PM UTC
  2. PowerBuilder
  3. # 1

Hi, Reynard -

To obtain the data value, obtain it via the GetItemString function. For example:

Long ll_row
String ls_data

ll_row = dw_1.GetRow()
If ll_row < 1 or ll_row > dw_1.RowCount() Then
   MessageBox("Error","Select a row first, please.")
   Return 0
End If

ls_data = dw_1.GetItemString(ll_row,"charge_type_codes")

MessageBox('Data Value','The data value in row '+String(ll_row)+' is "'+ls_data+'".')
Return 0

To obtain the display value of the selected option from the drop-down list box, Use the Evaluate expression in a Describe function:

Long ll_row
String ls_describe, ls_display

ll_row = dw_1.GetRow()
If ll_row < 1 or ll_row > dw_1.RowCount() Then
   MessageBox("Error","Select a row first, please.")
   Return 0
End If

ls_describe = "Evaluate('LookUpDisplay(charge_type_codes)'," + String(ll_row) + ")"
ls_display = dw_1.Describe(ls_describe)

MessageBox('Display Value','The display value in row '+String(ll_row)+' is "'+ls_display+'".')
Return 0

Best regards, John

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Chris Pollach @Appeon
  1. Chris Pollach @Appeon
  2. Wednesday, 19 July 2023 18:18 PM UTC
Yep .. the "LookupDisplay" command would do it! ;-)
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Reynard Harrison
Reynard Harrison Accepted Answer Pending Moderation
  1. Wednesday, 19 July 2023 17:30 PM UTC
  2. PowerBuilder
  3. # 2

this is in a PowerBuilder 2022 application

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Reynard Harrison
Reynard Harrison Accepted Answer Pending Moderation
  1. Wednesday, 19 July 2023 17:29 PM UTC
  2. PowerBuilder
  3. # 3

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