public bool removeItem(PackageItem item)
{
var ls = item.locations();
if (!ls.Contains(this))
{
return false;
}
mItems.Remove(item);
ls.Remove(this);
return true;
}
//if true, it is in package
/// methods
public bool addItem(PackageItem item)
{
var ls = item.locations();
if (!ls.Contains(this))
{
mItems.Add(item);
ls.Add(this);
return true;
}
else
{
return false;
}
}