Vcl.ComCtrls.TCustomTabControl.CanChange

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Delphi

function CanChange: Boolean; dynamic;

C++

DYNAMIC bool __fastcall CanChange();

Properties

Type	Visibility	Source	Unit	Parent
function	protected	Vcl.ComCtrls.pas Vcl.ComCtrls.hpp	Vcl.ComCtrls	TCustomTabControl

Description

Change permission event dispatcher.

CanChange is called automatically when an attempt is made to change the selected tab. CanChange generates an OnChanging event so that an OnChanging event handler can prevent the selection from changing. If there is no OnChanging event handler, CanChange returns true, allowing the change.

Override CanChange to specify additional processing before the OnChanging event handler executes or to block the OnChanging event.

See Also

• OnChanging