void delete_MouseButtonClick(Widget source, EventArgs e)
{
checkDeleteOnClose = false;
if (DeleteElement != null)
{
DeleteElement.Invoke(element);
}
hide();
}
static public void Delete(string element)
{
if (_coll.Count > 0)
{
if (_coll.Contains(element))
{
_coll.Remove(element);
DeleteElement?.Invoke(element);
}
}
}