JVCL Help:TJvCustomTabBar.OnTabSelecting
JVCL Help: TJvCustomTabBar.OnTabSelecting Event
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Event handler signaled before a tab becomes the selected tab.
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TJvTabBarSelectingEvent = procedure (Sender: TObject; Item: TJvTabBarItem; var AllowSelect: Boolean) ofobject;
propertyOnTabSelecting: TJvTabBarSelectingEvent;
Parameters
| Parameters | Description |
| AllowSelect | Indicates the tab can become the selected tab. |
| Item | Tab for the event. |
| Sender | Control generating the event. |
Description
OnTabSelecting is a TJvTabBarSelectingEvent property that represents the event handler signaled before a tab becomes the selected tab on the control.
OnTabSelecting is triggered during processing that occurs when a new value has been assigned for the SelectedTab property as a result of a mouse click event or through assignment in code. OnTabSelecting can be used to perform application-specific processing required to determine if the tab in Item can become the selected tab in the control. Set AllowSelect to False to indicate that the tab cannot be used as the SelectedTab value.
Applications must assign a procedure for the event handler to allow responding to the notification.
Use OnTabSelected to perform processing required after a new value has determined and assigned for the SelectedTab property.
See Also
TJvTabBarSelectingEvent, TJvCustomTabBar.SelectedTab, TJvCustomTabBar.OnTabSelected
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