[Bug] TPageControl.ActivePage and OnChange event
lazarus / 31-LCL

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M.A.R.C. · 2016-10-17 03:08

Possible bug: Lazarus v1.7

On Windows 10 x64, changing the ActivePage property of TPageControl
fires OnChange event.

On Ubuntu linux x86, changing the ActivePage property of TPageControl
do not fires OnChange event.

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Michl · 2016-10-17 07:02

In Trunk OnChange should only be called, if a user change a page (not
by code, cause Delphi compatibility). See:
http://wiki.lazarus.freepascal.org/Lazarus_1.8.0_release_notes#TCustom
TabControl_setting_TabIndex_or_PageIndex_by_code
http://bugs.freepascal.org/view.php?id=25554
http://free-pascal-lazarus.989080.n3.nabble.com/Lazarus-TPageControl-
OnChange-calling-issue-td4049754.html