Tech Articles


Getting PowerFilter to work with Powerserver Web


In order to use PowerFilter in Powerserver Web you need to change 3 things to work around appeon problems.        

1) Structure comment 

Powerserver Web does not support comments in structures and will skip processing the entire structure.  So your structure won’t be in your deployed application and powerfilter won’t work at all.  So, you have to delete all the comments in the 2 structures in powerfilter.  
 

Structure Comment


2) datawindow text object expressions 
 

Both the visible and the text value expressions don't operate the way they do in powerbuilder.   The visible expression seems to be ignored entirely if the visible checkbox is checked.  You can get this to work by removing the checkmark on the visible property.  The visible expression will work then.  You may notice that the TEXT value has an expression too.  That seems to be ignored completely in appeonNo changes are needed for text value.


 

Text Visible expression

The easy way to select this object is to click on the t_blank text object in the control name list.   The t_blank text object is underneath all the columns
 

3) TRIM(string, boolean)

Powerserver Web trim support is limited to just the string argument.  The 2nd argument (boolean) will remove all white space when set to true.  This is the case for the left/right trim functions too.   Powerfilter uses trim.  Powerfilter has additional code to replace the CR/LF with spaces which is needed to remove CR/LF inside the string.  So it already removes CR/LF from the start and end of the string. Change the trim to the one without the TRUE, and handle removing other white space such as tabs with replace.
 

Trim function only partially supported in appeon

 

 

 

Comments (0)
There are no comments posted here yet

Find Articles by Tag

Jenkins WebBrowser JSONParser API Debug XML Charts UI Themes Resize SQL Database Connection Encoding Migration Web API PFC Transaction GhostScript PowerBuilder (Appeon) ODBC Variable 32-bit Application Model Script Array TFS Icon Event Handling File OAuth Trial UI Import JSON Platform RESTClient Interface Service SVN Database Object Database Table Data Automated Testing Sort PowerBuilder Excel IDE Event Handler OAuth 2.0 JSON PDFlib Outlook License Configuration CoderObject Source Code Repository SqlModelMapper Graph 64-bit Error SnapDevelop Messagging PowerBuilder Compiler Source Control TLS/SSL REST Branch & Merge Testing PowerServer Web Database Profile JSONGenerator Expression Deployment DataWindow JSON Windows 10 Icons COM Installation PostgreSQL PowerScript (PS) TreeView .NET Assembly Performance UI Modernization DLL .NET DataStore PostgreSQL ODBC driver Oracle Text Debugging Encryption PowerServer Mobile RibbonBar Data WinAPI DataType Database Table Schema Validation Bug SnapObjects Windows OS Elevate Conference CI/CD Design NativePDF RibbonBar Builder C# PBDOM Export JSON Database Syntax Web Service Proxy DevOps Mobile SQL Server Git Event DragDrop External Functions CrypterObject Menu HTTPClient Authentication Database Table PDF SOAP Export DataWindow SqlExecutor Import Database Painter Linux OS Azure Android Filter MessageBox iOS RichTextEdit Control Authorization Stored Procedure Open Source SDK Window OLE Debugger Class InfoMaker ActiveX .NET Std Framework OrcaScript TortoiseGit BLOB