[Gambas-bugtracker] Bug #1885: error when modifying listbox index

[bugtracker at gambaswiki.org]

http://gambaswiki.org/bugtracker/edit?object=BUG.1885&from=L21haW4-

Víctor PEREZ reported a new bug.

Summary
-------

error when modifying listbox index

Type             : Request
Priority         : Low
Gambas version   : 3.15
Product          : Development Environment


Description
-----------

error when modifying listbox index
(null object)

https://www.youtube.com/watch?v=fLU_oLPqrQM


System information
------------------

[System]
Gambas=3.15.2
OperatingSystem=Linux
Kernel=5.8.0-2-amd64
Architecture=x86_64
Distribution=<hostname> bullseye/sid
Desktop=MATE
Theme=fusion
Language=es_UY.UTF-8
Memory=6896M

[Libraries]
Cairo=libcairo.so.2.11600.0
Curl=libcurl.so.4.6.0
DBus=libdbus-1.so.3.19.13
GDK2=libgdk-x11-2.0.so.0.2400.32
GDK3=libgdk-3.so.0.2404.19
GStreamer=libgstreamer-1.0.so.0.1800.0
GTK+2=libgtk-x11-2.0.so.0.2400.32
GTK+3=libgtk-3.so.0.2404.19
OpenGL=libGL.so.1.7.0
Poppler=libpoppler.so.102.0.0
QT5=libQt5Core.so.5.14.2
SDL=libSDL-1.2.so.0.11.4
SQLite=libsqlite3.so.0.8.6

[Environment]
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
DESKTOP_SESSION=lightdm-xsession
DISPLAY=:0
GB_GUI=gb.qt5
GDMSESSION=lightdm-xsession
GIO_LAUNCHED_DESKTOP_FILE_PID=996
GPG_AGENT_INFO=/run/user/1000/gnupg/S.gpg-agent:0:1
GTK_MODULES=gail:atk-bridge
GTK_OVERLAY_SCROLLING=0
HOME=<home>
LANG=es_UY.UTF-8
LANGUAGE=es_UY.UTF-8
LC_ALL=es_UY.UTF-8
LOGNAME=<user>
MATE_DESKTOP_SESSION_ID=this-is-deprecated
PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games
PWD=<home>
QT_ACCESSIBILITY=1
QT_AUTO_SCREEN_SCALE_FACTOR=0
QT_LOGGING_RULES=*.debug=false
QT_SCALE_FACTOR=1
SESSION_MANAGER=local/<hostname>:@/tmp/.ICE-unix/669,unix/<hostname>:/tmp/.ICE-unix/669
SHELL=/bin/bash
SSH_AGENT_PID=708
SSH_AUTH_SOCK=/run/user/1000/keyring/ssh
TZ=:/etc/localtime
USER=<user>
XAUTHORITY=<home>/.Xauthority
XDG_CURRENT_DESKTOP=MATE
XDG_DATA_DIRS=/usr/share/mate:<home>/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share:/usr/share
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=lightdm-xsession
XDG_SESSION_ID=2
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session0
XDG_SESSION_TYPE=x11
XDG_VTNR=7