FMX.StdCtrls.TExpander.OnExpandedChanging

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Delphi

property OnExpandedChanging: TNotifyEvent read FOnExpandedChanging write FOnExpandedChanging;

C++

__property System::Classes::TNotifyEvent OnExpandedChanging = {read=FOnExpandedChanging, write=FOnExpandedChanging};

Properties

Type	Visibility	Source	Unit	Parent
event	published	FMX.StdCtrls.pas FMX.StdCtrls.hpp	FMX.StdCtrls	TExpander

Description

OnExpandedChanging is called when the checkbox state is about to change.

You can cancel OnExpandedChanging with EAbort.

See Also

• System.SysUtils.EAbort