protected override void OnKeyUp(KeyRoutedEventArgs e)
{
if (SelectionModel != null)
{
if (e.Key == VirtualKey.Escape)
{
SelectionModel.ClearSelection();
}
else if (e.Key == VirtualKey.Space)
{
SelectionModel.Select(RepeatedIndex);
}
else if (!SelectionModel.SingleSelect)
{
var isShiftPressed = Window.Current.CoreWindow.GetAsyncKeyState(VirtualKey.Shift).HasFlag(Windows.UI.Core.CoreVirtualKeyStates.Down);
var isCtrlPressed = Window.Current.CoreWindow.GetAsyncKeyState(VirtualKey.Control).HasFlag(Windows.UI.Core.CoreVirtualKeyStates.Down);
if (e.Key == VirtualKey.A && isCtrlPressed)
{
SelectionModel.SelectAll();
}
else if (isShiftPressed)
{
SelectionModel.SelectRangeFromAnchor(RepeatedIndex);
}
}
}
base.OnKeyUp(e);
}
protected override void OnPointerPressed(PointerRoutedEventArgs e)
{
if (SelectionModel != null)
{
if (e.KeyModifiers.HasFlag(VirtualKeyModifiers.Shift) && !SelectionModel.SingleSelect)
{
if (e.KeyModifiers.HasFlag(VirtualKeyModifiers.Control))
{
SelectionModel.DeselectRangeFromAnchor(RepeatedIndex);
}
else
{
SelectionModel.SelectRangeFromAnchor(RepeatedIndex);
}
}
else if (e.KeyModifiers.HasFlag(VirtualKeyModifiers.Control))
{
if (SelectionModel.IsSelected(RepeatedIndex).Value)
{
SelectionModel.Deselect(RepeatedIndex);
}
else
{
SelectionModel.Select(RepeatedIndex);
}
}
else
{
SelectionModel.Select(RepeatedIndex);
this.Focus(FocusState.Keyboard);
}
}
base.OnPointerPressed(e);
}
private void SelectRangeFromAnchor(SelectionModel manager, int groupIndex, int itemIndex, bool select)
{
Log.Comment("SelectRangeFromAnchor " + groupIndex + "." + itemIndex + " select:" + select.ToString());
if (select)
{
manager.SelectRangeFromAnchor(groupIndex, itemIndex);
}
else
{
manager.DeselectRangeFromAnchor(groupIndex, itemIndex);
}
}