Pivot Load Events

Pivot raises various events to indicate when a PivotItem is being brought into view and when it is being moved out of view.

When the user switches from one PivotItem to another, events are raised in the following order:

1. The UnloadingPivotItem event is raised for the first PivotItem.

2. The LoadingPivotItem event is raised for the second PivotItem.

3. The UnloadedPivotItem event is raised for the first PivotItem.

4. The LoadedPivotItem event is raised for the second PivotItem.

These events are not cancelable. That is, they are not designed to allow for preventing or returning the Pivot to the previously active PivotItem. It is possible, however, to queue a change back to the previously active PivotItem. Queuing an index change in one of the load event handlers has to be performed after the current PivotItem change has finished; otherwise, the Pivot will get out of sync. This can be done by using the Dispatcher to invoke the change, which means it occurs after the current UI thread task completes. The following example demonstrates how to use the Dispatcher to lock the Pivot to the first PivotItem:

Click here to view code image

void Pivot_LoadingPivotItem(object sender, PivotItemEventArgs e)
{
    Dispatcher.BeginInvoke(delegate { pivot.SelectedIndex = 0; });
}