View Replies (4)
Message Object Nulled before being checked
  1. New
  2. Issue
0 Votes
  1. Paul Shue
  2. PowerBuilder
  3. Tuesday, 1 July 2025 07:16 PM UTC

We recently added a new process to our application which was checking the width of datawindow text fields to verify the data would fit.
This pbl (call it newstuff.pbl) contains maybe 120 dataobjects, 5 global functions, a structure, a non-visual userobject and 3 windows. Everything seems to work fine but after more testing we ran into into issues where it seems the global message object is somehow getting nulled after it is set but before it is checked. In our example we call pfc of_message. 

li_resp = gnv_app.inv_error.of_message( 'P188', ls_parm[] )

This code opens a response window (w_message with yes / no buttons. In the pfc_default event of that window the following code is run
and I checked in debug to verify that ii_buttonclicked is set correctly at the CloseWithReturn statement.

// Store the button that was pressed.
inv_errorattrib.ii_buttonclicked = ii_buttonclicked
// Store any User Input information
inv_errorattrib.is_usertext = mle_userinput.text
// Close the window.
CloseWithReturn(This, inv_errorattrib)

In pfc_n_cst_error.of_processmessage the following code  is executed and in debug, li_testrc = 1 but the IsValid(Message.powerobjectparm) returns false, so the ii_buttonclicked = 0 which is wrong.   All of this code is pfc and has nothing to do with the changes in newstuff.pbl. However if I take that pbl out of the path, then the pfc code included here works correctly. I can fix the issue by using a simple messagebox (no message object involved) instead of the gnv_app.inv_error.of_message( 'P188', ls_parm[] ), but I think that is a bandaid for the real problem and we have other areas where the same kind of thing is happening. Any idea what could be causing the message object to be cleared?

li_testrc = OpenWithParm(w_message, inv_errorpass)
If  li_testrc > 0 Then
// Get the structure passed by the response window for 
// any user input and buttonclicked.
If IsValid(Message.powerobjectparm) Then
inv_errorpass = Message.powerobjectparm
End If
End If

Using PB version 2021 Build 1509

Ribbon bottom Text Transparent/no border lines on a dddw using themes
Who is viewing this page
Roland Smith
Responses (4)
  1. Likes
  2. Latest
  3. Oldest

Find Questions by Tag

.EXE .NET 6.0 .NET Assembly .NET Core 3.1 .NET Core Framework .NET DataStore .NET Std Framework 32-bit 64-bit ADO.NET AEM AI Algorithm Amazon AWS Android Apache API APK App Store App Store (Apple) Appeon Workspace Appeon Xcelerator Plug-in Architecture Array ASE Asynchronous Methods Authentication AutoBuild AutoCompiler Automated Testing Automation AutoScript Azure Barcode Base64 Batch BigData BLOB Branch & Merge Browser Bug Build Button C# C# Class Importer C# Editor C# Model generator Calendar Camera Certificate Chrome Citrix Class Client Client/Server Cloud Cluster Collection COM Command Line Compiler Compression Computed Field Configuration Controls Cookies Cordova Crash Cross-Platform Crosstab CSharpAssembly CSharpObject CSS CSV Cursor Data Database Database Driver Database Painter Database Profile Database Provider DataObject DataSource DataStore DataStore (C#) DataStore (PS) DataType DataWindow DATE DATETIME DB2 Debug Debugger Debugging Deployment Design DLL DO-WHILE Dockable Docker Documentation DOUBLE Download DPI DragDrop Edge Edit Style Editor Elevate Conference Email Embedded SQL Emulator Encoding Encryption Enhancement Request Entity Entity Framework ERP Error Event Event Handler Event Handling Excel Exception Export Expression External Functions F# Field File File Access Filter Firefox Firewall Font FOR-NEXT Foreground Format Function Garbage Collection GeoLocation Git Graph HANA Hash Header HTML/5 HTTP/S HTTPClient Icon IDE Identity IIS IMAPI Import InfoMaker Inheritance Installation Integer IntelliSense Interface Internet Internet Explorer iOS IPA iPad iPhone IWA J# Java JavaScript JBoss JDBC JOIN JSON JSONGenerator JSONParser Kestrel Label Lambda Large File LDAP Library License LINQ Linux OS Load Balancing Localization Localized PBVM Log In Log Out Logging LONG LONGLONG macOS MAPI Maps MDI Memory Memory Leak Menu Merge MessageBox Messagging Method Migration MIME TYPE Mobile Model ModelStore ModelStore (C#) MSOLEDBSQL Multi Threading MVC MySQL n-Tier Namespace NativePDF NVO OAuth ODATA ODBC Office Offline OLE OLEDB Online Open Source OpenAPI OpenSSL Oracle OrcaScript Other Outlook Output Package Parameter Patch PayPal PB Classic PB Native PB.NET PBC PBD PBDOM PBG PBJVM PBL PBNI PBORCA PBVM PBX PDF Performance Permission PFC Picture Pipeline Play Store (Google) Plugin Popup Port POST PostgreSQL PowerBuilder PowerBuilder (Appeon) PowerBuilder (SAP) PowerBuilder Compiler PowerBuilder Runtime PowerClient PowerScript (PS) PowerScript IDE PowerScript Migrator PowerServer PowerServer Mobile PowerServer Toolkit PowerServer Web PowerServerLabel Print Properties Proxy Publish PULL PUSH Query Regression Release Renew Resize Response REST Retrieve RibbonBar RibbonBar Builder RibbonView Rich Text Roadmap RPC Runtime Packager SaaS Scaffolding Script SDI SDK Security Server Service Session Single Sign-on Size SMTP SMTPClient SnapDevelop SOAP Solution Sort Source Code Speech Recognition SQL SQL Anywhere SQL Server SqlBuilder SqlExecutor SQLite SqlModelMapper Storage Stored Procedure Subscription SVN Swagger Syntax TabbedBar TabbedView Tablet TabPage Target TE Control Testing Text TFS Theme TIME Timer TLS/SSL Tomcat TortoiseGit TortoiseSVN Transaction Transparency Trial Trigger TRY-CATCH TX Control Type UI ULONG UltraLite Uninstall Unit Test Unit Testing UNIX OS Update Upgrade Upload URL User Center User Object UWP Validation VARCHAR Variable Versioning Visual Studio Visual Studio Code VM Voice Warning WCF Web API Web Extensions Web Service WebBrowser WebForms WebLogic WebSphere WildFly WinAPI Window Windows OS WinForms Wizard Workgroup Workspace WPF XCODE XHTML XML Zoom
✖

Helpful?

If a reply or comment is helpful for you, please don’t hesitate to click the Helpful button. This action is further confirmation of their invaluable contribution to the Appeon Community.