CODEWITHSUNDEEP
delphidelphi-10.4-sydney
user1580348
user1580348

Reputation: 6053

TCard class does not have public OnShow and OnHide events

In a Delphi 10.4 VCL Application, TCard (as container-item of TCardPanel) does not have public OnShow and OnHide events (like TTabSheet has).

Therefore, the TCard.OnEnter event-handler is NOT triggered when a specific TCard is ACTIVATED. The TCard.OnEnter event-handler is triggered ONLY when e.g. clicking on a control on the TCard.

Example code:

CardPanel1.ActiveCard := Card2;

In this case, the TCard.OnEnter event is NOT triggered!

Is it possible to upgrade the TCard class with public OnShow and OnHide events? Or is it possible to simulate those events?

Upvotes: 1

Views: 289

Answers (1)

Uwe Raabe
Uwe Raabe

Reputation: 47714

Use the OnCardChange event of TCardPanel and compare PrevCard and/or NextCard with your actual card instances.

Upvotes: 2

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