protected override IScriptCommand executeInner(ParameterDic pm, ItemsControl ic,
RoutedEventArgs evnt, IUIInput input, IList <IUIInputProcessor> inpProcs)
{
Point posRelToScp = pm.GetValue <Point>(CurrentRelativePositionKey);
var startSelected = UIEventHubProperties.GetStartSelectedItem(ic);
List <object> selectedList = new List <object>();
List <int> selectedIdList = new List <int>();
var scp = ControlUtils.GetScrollContentPresenter(ic);
var currentSelected = UITools.GetSelectedListBoxItem(scp, posRelToScp);
if (startSelected != null && currentSelected != null)
{
int startIdx = ic.ItemContainerGenerator.IndexFromContainer(startSelected);
int endIdx = ic.ItemContainerGenerator.IndexFromContainer(currentSelected);
for (int i = Math.Min(startIdx, endIdx); i <= Math.Max(startIdx, endIdx); i++)
{
selectedList.Add(ic.Items[i]);
selectedIdList.Add(i);
}
}
//UpdateStartSelectedItems, or clear it if no longer selecting.
if (UIEventHubProperties.GetIsSelecting(ic))
{
if (UIEventHubProperties.GetStartSelectedItem(ic) == null)
{
var itemUnderMouse = UITools.GetSelectedListBoxItem(scp, posRelToScp);
UIEventHubProperties.SetStartSelectedItem(ic, itemUnderMouse);
}
}
else
{
UIEventHubProperties.SetStartSelectedItem(ic, null);
}
if (UIEventHubProperties.GetIsSelecting(ic))
{
if (UIEventHubProperties.GetStartSelectedItem(ic) == null)
{
UITools.SetItemUnderMouseToAttachedProperty(ic, posRelToScp,
UIEventHubProperties.StartSelectedItemProperty);
}
}
pm.SetValue(SelectedListKey, selectedList);
pm.SetValue(SelectedIdListKey, selectedIdList);
logger.Debug(String.Format("Selected = {0}", selectedIdList.Count()));
return(NextCommand);
}
