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Resolved Web - tilde issue

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  1. David Vasconcelos
    David Vasconcelos
  2. PowerBuilder
  3. Thursday, 28 June 2018 16:33 PM UTC

When you have a modify statement and need multiple Tilde's I.e  "~t" if you have "if" statements for attributes or strings ~".  

In one of the Appeon docs it's mentions

"Tilde ("~") on the web may not take effect if it is contained in a nested string that is a variable or it is contained in a string whose nested level is up to two." as unsupported.

The following statement does not work in the web (but works in PB native) I am assuming its not working because of the multiple Tilde's.

 sCollapsedExpression = sValueColumn + "=~"" + sValue + "~"" 
 sExpandedExpression = sValueColumn + "=~"" + sValue + "~""

   sModify = "create bitmap(band=detail x='0~t(((" + islevelcol +  &
     " - 1)*"+isBMPWidth+") + " + isBMPX + ")' y='0' " + &
      " height='" + sLevelHeight + "' width='" + isBMPWidth + "' " + &
     ' filename= "' + sExpanded + '" ' + &
     " visible='0~tif(((" + islevelcol + " = " +  &
     string(iLevel) + ") and (expanded=1) and (" +  &
     sExpandedExpression + ")),1,0)' " + &
     " name= " + sBitmapName + " )"

Is there a work around for tilde's or how can this be handled?

PB2017 R1, PowerServer 2017, Win10.

 

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Accepted Answer
Olan Knight
Olan Knight Accepted Answer Pending Moderation
  1. Thursday, 28 June 2018 21:48 PM UTC
  2. PowerBuilder
  3. # Permalink

The Tilde is a PowerBuilder-specific delimiter, and thus is not read by any other application as anything but a character.

If you want to use this string in a setting/environment/program other than PowerBuilder, you will need to strip the tildes from the string(s) and insert any appropriate delimiters before submitting the string for processing.

Olan

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David Vasconcelos
  1. David Vasconcelos
  2. Friday, 29 June 2018 09:55 AM UTC
Olan, thanks for the reply but I am stilled puzzled to I replace "~t" which is a tab character with he acii value of a tab character, is that what you mean or am I not understanding?

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David Vasconcelos
  1. David Vasconcelos
  2. Thursday, 19 July 2018 14:09 PM UTC
Turns out in my case it was not the tilde... it was the Create statement. The create statement was creating a bitmap but I used the same object name, since this was in a loop it would create the object with the same name several times. PB2017 for some reason allowed it but Appeon Web did not. Once I changed the code so that each bitmap object would have its own unique name it worked.
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Chris Pollach @Appeon
  1. Chris Pollach @Appeon
  2. Thursday, 19 July 2018 14:39 PM UTC
Thanks for the feedback David!
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Responses (2)
Chris Pollach @Appeon
Chris Pollach @Appeon Accepted Answer Pending Moderation
  1. Friday, 29 June 2018 00:36 AM UTC
  2. PowerBuilder
  3. # 1

Hi David;

   From the PS Help file ...

HTH

Regards ... Chris

Comment
David Vasconcelos
  1. David Vasconcelos
  2. Friday, 29 June 2018 09:56 AM UTC
Thanks Chris, what you highligted is what I pasted on my question.  How do you replace the tilde so that it works in the web world?

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Chris Pollach @Appeon
  1. Chris Pollach @Appeon
  2. Friday, 29 June 2018 13:41 PM UTC
Hi David;



  The only thing that I can think ot at the moment (I have not tried this personally) would be to  ....





Use a symbolic replacement character in the DW syntax (ie: %tilde%)

Assign the symbolic DW syntax to your sModify variable and further annotate as normal

When the sModify variable is ready for the DW.Modify() - run PowerScript code to replace all %tilde% with "~t"





HTH



Regards ... Chris

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