protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
id = int.Parse(Request.QueryString.Get("Id").ToString());
thuTu = int.Parse(Request.QueryString.Get("thutu").ToString());
kh = int.Parse(Request.QueryString.Get("kh").ToString());
bhm = bhc.getBaiHocById(id);
lblName.Text = "Bài " + bhm.ThuTu + ": " + bhm.Name;
string link = "3z80cGzIyWk";
link = bhm.Link;
ltrVideo.Text = "<iframe width = \"700\" height = \"400\" src = \"https://www.youtube.com/embed/" + link + "\" frameborder = \"0\" allow = \"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen></iframe>";
BaiHocModel bhm_2 = new BaiHocModel();
bhm_2 = bhc.findMaxThuTu(kh);
int maxThuTu = bhm_2.ThuTu;
if (maxThuTu == 1 || thuTu == 1)
{
btnPre.Visible = false;
}
else if (maxThuTu == thuTu)
{
btnNext.Visible = false;
}
}
}
protected void btnNext_Click(object sender, EventArgs e)
{
kh = int.Parse(Request.QueryString.Get("kh").ToString());
thuTu = int.Parse(Request.QueryString.Get("thutu").ToString());
thuTu += 1;
bhm = bhc.findPreBaiHoc(kh, thuTu);
id = bhm.Id;
Response.Redirect("VideoBaiHoc.aspx?Id=" + id + "&kh=" + kh + "&thutu=" + thuTu);
}
