//Thêm
public bool them_Tang(TANG tg)
{
try
{
data.TANGs.InsertOnSubmit(tg);
data.SubmitChanges();
return(true);
}
catch
{
return(false);
}
}
//Xóa
public bool xoaTang(string pMaTang)
{
try
{
TANG tg = data.TANGs.Where(t => t.MATANG == pMaTang).FirstOrDefault();
data.TANGs.DeleteOnSubmit(tg);
data.SubmitChanges();
return(true);
}
catch
{
return(false);
}
}
//Sửa
public bool suaTang(TANG pTang)
{
try
{
TANG nv = data.TANGs.Where(t => t.MATANG == pTang.MATANG).FirstOrDefault();
if (nv != null)
{
nv.TENTANG = pTang.TENTANG;
data.SubmitChanges();
}
return(true);
}
catch
{
return(false);
}
}