Fires on the server side before the active tab is changed within a tab control.
public event BootstrapPageControlCancelEventHandler ActiveTabChanging
Public Event ActiveTabChanging As BootstrapPageControlCancelEventHandler
The ActiveTabChanging event's data class is BootstrapPageControlCancelEventArgs. The following properties provide information specific to this event:
|Cancel||Gets or sets a value indicating whether the command which raised an event should be canceled. Inherited from TabControlCancelEventArgs.|
|Tab||Gets a tab object related to the event.|
Write a ActiveTabChanging event handler to perform specific actions on the server side before each time the selected tab changes. You can use the event parameter's properties to identify the newly selected tab and cancel the execution of the command if necessary.