Re: TestError

[Bruce Steers <bsteers4@xxxxxxxxx>]

That is not how you check for errors.
It should be done like this after a Try...

If Error then
  Print Error.Text
Endif

After that Error.Text is not reset to null, it will always display the last
error text.

So randomly checking Error.Text or Error.Value at some time in your code
will just show the last error msg/value.

An Error is not something that always throws an exception.

Eg..
Try File.Load(sPath)
If Error Then
  Print Error.Text
Endif

Error text is filled in but there was no exception to halt the program.

So the only error in your form is how you are using Error.class
The error you are displaying is from this code in _GridView_Rows.class
https://gitlab.com/gambas/gambas/-/blob/master/comp/src/gb.gui.base/.src/GridView/_GridView_Rows.class?ref_type=heads

Public Sub _GetRowHeight(iRow As Integer) As Integer    Try Return
$cHeight[iRow]  Return _GetDefaultRowHeight()  End

It attempts
Try Return $cHeight[iRow]
if that fails it returns _GetDefaultRowHeight()

Respects
BruceS


On Mon, 10 Nov 2025 at 15:47, CD <dessere.claude@xxxxxx> wrote:

> Hello,
>
> I have an application with a main form
> from which I launch another form in ShowModal mode.
>
> After this form is submitted, I test the Error class which returns:
>
> Print Error.Class -> (Class 0x590273648788)
> Print Error.Code -> 6
> Print Error.Text -> Type mismatch: wanted Integer, got Null instead
> Print Error.Where -> [gb.gui.base]._GridView_Rows._GetRowHeight.161
>
> I reproduced the issue with a Test application .
>
> What about the error coming from
> [gb.gui.base]._GridView_Rows._GetRowHeight.161 ?
>
> Project attached
>
> Regards
>
>
>
>
> [System]
> Gambas=3.21.0 7f84523 (master)
> OperatingSystem=Linux
> Distribution=Ubuntu 24.04.3 LTS (Noble Numbat)
> Kernel=6.8.0-86-generic
> Architecture=x86_64
> Cores=8
> Memory=7817M
> Language=fr_FR.UTF-8
> Platform=x11
> Desktop=MATE
> DesktopResolution=96
> DesktopScale=9
> WidgetTheme=blackmate
> Font=Ubuntu Mono,13
> DarkTheme=True
> [Programs]
> dpkg=Programme « dpkg » de gestion de paquets Debian version 1.22.6
> (amd64).
> gcc=gcc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
> git=git version 2.43.0
> msgmerge=msgmerge (GNU gettext-tools) 0.21
> rpmbuild=RPM version 4.18.2
> [Libraries]
> Cairo=libcairo.so.2.11800.0
> Curl=libcurl.so.4.8.0
> DBus=libdbus-1.so.3.32.4
> GDK2=libgdk-x11-2.0.so.0.2400.33
> GDK3=libgdk-3.so.0.2409.32
> GStreamer=libgstreamer-1.0.so.0.2402.0
> GTK+2=libgtk-x11-2.0.so.0.2400.33
> GTK+3=libgtk-3.so.0.2409.32
> OpenGL=libGL.so.1.7.0
> Poppler=libpoppler.so.134.0.0
> Poppler=libpoppler.so.73.0.0
> QT5=libQt5Core.so.5.15.13
> QT6=libQt6Core.so.6.4.2
> RSvg=librsvg-2.so.2.50.0
> SDL=libSDL2-2.0.so.0.3000.0
> SQLite3=libsqlite3.so.0.8.6
> [Environment]
> COMPIZ_CONFIG_PROFILE=mate
> DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
> DEBUGINFOD_URLS=https://debuginfod.ubuntu.com
> DEFAULTS_PATH=/usr/share/gconf/mate.default.path
> DESKTOP_SESSION=mate
> DISPLAY=:0
> GB_GUI=gb.gtk3
> GDMSESSION=mate
> GDM_LANG=fr_FR
> GIO_LAUNCHED_DESKTOP_FILE=<home>/Bureau/gambas3.desktop
> GIO_LAUNCHED_DESKTOP_FILE_PID=183671
> GNOME_KEYRING_CONTROL=/run/user/1000/keyring
> GPG_AGENT_INFO=/run/user/1000/gnupg/S.gpg-agent:0:1
> GTK3_MODULES=xapp-gtk3-module
> GTK_MODULES=appmenu-gtk-module:gail:atk-bridge:canberra-gtk-module
> GTK_OVERLAY_SCROLLING=0
> HOME=<home>
> INSIDE_CAJA_PYTHON=
> LANG=fr_FR.UTF-8
> LANGUAGE=fr_FR.UTF-8
> LC_ADDRESS=fr_FR.UTF-8
> LC_IDENTIFICATION=fr_FR.UTF-8
> LC_MEASUREMENT=fr_FR.UTF-8
> LC_MONETARY=fr_FR.UTF-8
> LC_NAME=fr_FR.UTF-8
> LC_NUMERIC=fr_FR.UTF-8
> LC_PAPER=fr_FR.UTF-8
> LC_TELEPHONE=fr_FR.UTF-8
> LC_TIME=fr_FR.UTF-8
> LOGNAME=<user>
> MANDATORY_PATH=/usr/share/gconf/mate.mandatory.path
> MATE_DESKTOP_SESSION_ID=this-is-deprecated
> PAPERSIZE=a4
>
> PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin
> PWD=<home>
> QT_ACCESSIBILITY=1
> QT_FONT_DPI=96
> QT_LOGGING_RULES=*.debug=false
> QT_QPA_PLATFORMTHEME=gtk2
> QT_SCALE_FACTOR=1
>
> SESSION_MANAGER=local/<hostname>:@/tmp/.ICE-unix/2550,unix/<hostname>:/tmp/.ICE-unix/2550
> SHELL=/bin/bash
> SHLVL=0
> SSH_AUTH_SOCK=/run/user/1000/keyring/ssh
> TZ=:/etc/localtime
> UBUNTU_MENUPROXY=1
> USER=<user>
> XAUTHORITY=<home>/.Xauthority
> XDG_CONFIG_DIRS=/etc/xdg/xdg-mate:/etc/xdg
> XDG_CURRENT_DESKTOP=MATE
>
> XDG_DATA_DIRS=/usr/share/mate:/usr/share/mate:/usr/share/gnome:/usr/local/share:/usr/share:/var/lib/snapd/desktop
> XDG_GREETER_DATA_DIR=/var/lib/lightdm-data/<user>
> XDG_RUNTIME_DIR=/run/user/1000
> XDG_SEAT=seat0
> XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
> XDG_SESSION_CLASS=user
> XDG_SESSION_DESKTOP=mate
> XDG_SESSION_ID=c1
> XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session0
> XDG_SESSION_TYPE=x11
> XDG_VTNR=7
>
>