// if a selection is made in one listbox, invalidate the selection in all others
private void lb_MouseUp(object sender, MouseButtonEventArgs e)
{
ListBox lbSender = sender as ListBox;
if (lbSender == null)
{
return;
}
// saved picked color
object pickedObj = lbSender.SelectedItem;
if (pickedObj != null)
{
IndexColor pickedIC = pickedObj as IndexColor;
if (pickedIC != null)
{
this.PickedColor = pickedIC.Color;
this.PickedIndex = pickedIC.Index;
}
}
// invalidate selection in other listboxes
var listBoxes = AppHelpers.FindVisualChildren <ListBox>(this);
foreach (ListBox lb in listBoxes)
{
if (lb != lbSender)
{
lb.SelectedItem = null;
}
}
}
