public static bool ChuyenLop(string maTre, string maLopMoi, string maLopCu)
{
if (string.Compare(TreDAL.GetTinhTrangTrongLop(maTre, maLopCu).Trim(), "0") == 0)
{
try
{
TreDAL.ChuyenLop(maTre, maLopMoi);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
else
{
return(false);
}
return(true);
}
