public BUS.Day DuLieuKV(int maday)
{
DataSet ds = day.LayDLMotDong(maday);
BUS.Day dv = new BUS.Day();
dv.Maday = Convert.ToInt32(ds.Tables[0].Rows[0]["MaDay"]);
dv.Makv = ds.Tables[0].Rows[0]["MaKV"].ToString();
dv.Tenday = ds.Tables[0].Rows[0]["TenDay"].ToString();
return(dv);
}