protected void BtnAdd_Click(object sender, EventArgs e) { dtcheck = obj.CheckStudentMarksHS(Convert.ToInt32(ddnstudent.SelectedValue), Convert.ToInt32(ddnclass.SelectedValue), Convert.ToInt32(ddnsection.SelectedValue), ddnsemester.SelectedItem.Text); if (dtcheck.Rows.Count > 0) { lblmsg.Text = "Marks Already Exist"; } if (dtcheck.Rows.Count <= 0) { i = obj.AddtStudentMarksHS(Convert.ToInt32(ddnstudent.SelectedValue), Convert.ToInt32(ddnclass.SelectedValue), Convert.ToInt32(ddnsection.SelectedValue), ddnsemester.SelectedItem.Text, Convert.ToInt32(txte1.Text), Convert.ToInt32(txte2.Text), Convert.ToInt32(txth1.Text), Convert.ToInt32(txth2.Text), Convert.ToInt32(txtm1.Text), Convert.ToInt32(txtm2.Text), Convert.ToInt32(txtphysics.Text), Convert.ToInt32(txtchem.Text), Convert.ToInt32(txtbio.Text), Convert.ToInt32(txtcomputers.Text), Convert.ToInt32(txtss.Text), "Teacher", Convert.ToInt32(Session["tuid"]), DateTime.Now.ToString()); if (i > 0) { Session["StId"] = ddnstudent.SelectedValue; lblmsg.Text = "Data Has Been Added"; BindData(); Response.Redirect("ReportCard1.aspx"); } } }