private void OnListPickerModeChanged(ListPickerMode oldValue, ListPickerMode newValue)
{
// Hook up to frame if not already done
if (null == _frame)
{
_frame = Application.Current.RootVisual as PhoneApplicationFrame;
if (null != _frame)
{
_frame.AddHandler(ManipulationCompletedEvent, new EventHandler <ManipulationCompletedEventArgs>(HandleFrameManipulationCompleted), true);
}
}
// Restore state
if ((ListPickerMode.Full == oldValue) && !DesignerProperties.IsInDesignTool)
{
if (null != _fullModePopupPart)
{
_fullModePopupPart.IsOpen = false;
}
if (null != _fullModeSelectorPart)
{
_fullModeSelectorPart.SelectionChanged -= HandleFullModeSelectorPartSelectionChanged;
_fullModeSelectorPart.Loaded -= HandleFullModeSelectorPartLoaded;
_fullModeSelectorPart.ItemsSource = null;
}
Action restoreSystemTray = () =>
{
try
{
SystemTray.IsVisible = _savedSystemTrayIsVisible;
}
catch (InvalidOperationException)
{
}
};
try
{
restoreSystemTray();
}
catch (InvalidOperationException)
{
Dispatcher.BeginInvoke(restoreSystemTray);
}
if (null != _page)
{
if (null != _page.ApplicationBar)
{
_page.ApplicationBar.IsVisible = _savedApplicationBarIsVisible;
}
}
if (null != _frame)
{
_frame.OrientationChanged -= HandleFrameOrientationChanged;
}
}
if ((ListPickerMode.Expanded == oldValue) || (ListPickerMode.Full == oldValue))
{
if (null != _page)
{
_page.BackKeyPress -= HandlePageBackKeyPress;
_page = null;
}
}
// Hook up to relevant events
if ((ListPickerMode.Expanded == newValue) || (ListPickerMode.Full == newValue))
{
if (null != _frame)
{
_page = _frame.Content as PhoneApplicationPage;
if (null != _page)
{
_page.BackKeyPress += HandlePageBackKeyPress;
}
}
}
if ((ListPickerMode.Full == newValue) && !DesignerProperties.IsInDesignTool)
{
Action saveTrayAndHide = () =>
{
try
{
_savedSystemTrayIsVisible = SystemTray.IsVisible;
SystemTray.IsVisible = false;
}
catch (InvalidOperationException)
{
}
};
try
{
saveTrayAndHide();
}
catch (InvalidOperationException)
{
Dispatcher.BeginInvoke(saveTrayAndHide);
}
if (null != _frame)
{
AdjustPopupChildForCurrentOrientation(_frame);
_frame.OrientationChanged += HandleFrameOrientationChanged;
if (null != _page)
{
if (null != _page.ApplicationBar)
{
_savedApplicationBarIsVisible = _page.ApplicationBar.IsVisible;
_page.ApplicationBar.IsVisible = false;
}
}
}
if (null != _fullModeSelectorPart)
{
_fullModeSelectorPart.ItemsSource = Items;
_fullModeSelectorPart.SelectionChanged += HandleFullModeSelectorPartSelectionChanged;
_fullModeSelectorPart.Loaded += HandleFullModeSelectorPartLoaded;
}
if (null != _fullModePopupPart)
{
_fullModePopupPart.IsOpen = true;
}
}
// Resize for new view and go to relevant visual state(s)
SizeForAppropriateView(ListPickerMode.Full != oldValue);
GoToStates(true);
}
private void OnListPickerModeChanged(ListPickerMode oldValue, ListPickerMode newValue)
{
if ((ListPickerMode.Expanded == oldValue))
{
if (null != _page)
{
_page.BackKeyPress -= HandlePageBackKeyPress;
_page = null;
}
if (null != _frame)
{
_frame.ManipulationStarted -= HandleFrameManipulationStarted;
_frame = null;
}
}
if (ListPickerMode.Expanded == newValue)
{
// Hook up to frame if not already done
if (null == _frame)
{
_frame = Application.Current.RootVisual as PhoneApplicationFrame;
if (null != _frame)
{
_frame.AddHandler(ManipulationStartedEvent, new EventHandler<ManipulationStartedEventArgs>(HandleFrameManipulationStarted), true);
}
}
if (null != _frame)
{
_page = _frame.Content as PhoneApplicationPage;
if (null != _page)
{
_page.BackKeyPress += HandlePageBackKeyPress;
}
}
}
if (ListPickerMode.Full == oldValue)
{
ClosePickerPage();
}
if (ListPickerMode.Full == newValue)
{
OpenPickerPage();
}
SizeForAppropriateView(ListPickerMode.Full != oldValue);
IsHighlighted = (ListPickerMode.Expanded == newValue);
}
private void OnListPickerModeChanged(ListPickerMode oldValue, ListPickerMode newValue)
{
// Hook up to frame if not already done
if (null == _frame)
{
_frame = Application.Current.RootVisual as PhoneApplicationFrame;
if (null != _frame)
{
_frame.AddHandler(ManipulationCompletedEvent, new EventHandler<ManipulationCompletedEventArgs>(HandleFrameManipulationCompleted), true);
}
}
// Restore state
if ((ListPickerMode.Full == oldValue) && !DesignerProperties.IsInDesignTool)
{
if (null != _fullModePopupPart)
{
_fullModePopupPart.IsOpen = false;
}
if (null != _fullModeSelectorPart)
{
_fullModeSelectorPart.SelectionChanged -= HandleFullModeSelectorPartSelectionChanged;
_fullModeSelectorPart.Loaded -= HandleFullModeSelectorPartLoaded;
_fullModeSelectorPart.ItemsSource = null;
}
Action restoreSystemTray = () =>
{
try
{
SystemTray.IsVisible = _savedSystemTrayIsVisible;
}
catch (InvalidOperationException)
{
}
};
try
{
restoreSystemTray();
}
catch (InvalidOperationException)
{
Dispatcher.BeginInvoke(restoreSystemTray);
}
if (null != _page)
{
if (null != _page.ApplicationBar)
{
_page.ApplicationBar.IsVisible = _savedApplicationBarIsVisible;
}
}
if (null != _frame)
{
_frame.OrientationChanged -= HandleFrameOrientationChanged;
}
}
if ((ListPickerMode.Expanded == oldValue) || (ListPickerMode.Full == oldValue))
{
if (null != _page)
{
_page.BackKeyPress -= HandlePageBackKeyPress;
_page = null;
}
}
// Hook up to relevant events
if ((ListPickerMode.Expanded == newValue) || (ListPickerMode.Full == newValue))
{
if (null != _frame)
{
_page = _frame.Content as PhoneApplicationPage;
if (null != _page)
{
_page.BackKeyPress += HandlePageBackKeyPress;
}
}
}
if ((ListPickerMode.Full == newValue) && !DesignerProperties.IsInDesignTool)
{
Action saveTrayAndHide = () =>
{
try
{
_savedSystemTrayIsVisible = SystemTray.IsVisible;
SystemTray.IsVisible = false;
}
catch (InvalidOperationException)
{
}
};
try
{
saveTrayAndHide();
}
catch (InvalidOperationException)
{
Dispatcher.BeginInvoke(saveTrayAndHide);
}
if (null != _frame)
{
AdjustPopupChildForCurrentOrientation(_frame);
_frame.OrientationChanged += HandleFrameOrientationChanged;
if (null != _page)
{
if (null != _page.ApplicationBar)
{
_savedApplicationBarIsVisible = _page.ApplicationBar.IsVisible;
_page.ApplicationBar.IsVisible = false;
}
}
}
if (null != _fullModeSelectorPart)
{
_fullModeSelectorPart.ItemsSource = Items;
_fullModeSelectorPart.SelectionChanged += HandleFullModeSelectorPartSelectionChanged;
_fullModeSelectorPart.Loaded += HandleFullModeSelectorPartLoaded;
}
if (null != _fullModePopupPart)
{
_fullModePopupPart.IsOpen = true;
}
}
// Resize for new view and go to relevant visual state(s)
SizeForAppropriateView(ListPickerMode.Full != oldValue);
GoToStates(true);
}
