public DataTable getalldatasinhvien()
{
CON = new ConnectData();
DataTable dt = null;
dt = CON.getdata("SELECT * FROM View_SinhVien");
return(dt);
}
public Boolean kiemtradangnhap(string user, string pass)
{
CON = new ConnectData();
DataTable dt = CON.getdata("select * from Users where username = '******' and password = '******' "); // lấy dữ liệu
Boolean check = false;
if (dt != null)
{
if (dt.Rows.Count == 1)
{
check = true;
}
else
{
check = false;
}
}
return(check);
}