int GridCtrl::FindColWidth(const Id& id)
{
    for(int i = fixed_cols; i < total_cols; i++)
        if(aliases.GetKey(i) == id)
            return hitems[i].Width();

    return -1;
}

GridCtrl::ItemRect& GridCtrl::ItemRect::Hidden(bool b)
{
    hidden = b;
    if(hidden) size = 0;//modify this to avoid alway hidden
    return *this;
}