protected void lbtnPrev_Click(object sender, EventArgs e) { int OID = 0; Student stu = new Student(); int rowid = Convert.ToInt32(ViewState["RowID"]); rowid--; ViewState["RowID"] = rowid; string strID = stu.GetStudentByRowID(rowid); OID = stu.GetStudentOIDByRowID(rowid); //if (ViewState["StuID"] == OID.ToString()) //{ // rowid--; //} //ViewState["StuID"] = OID.ToString(); // Session["StudentID"] = lbtnID.Text.ToString(); lbtnNext.Enabled = true; //OID = Prev(); //string strID = stu.GetStudentIDByStudentBannerOID(OID); if (strID == "" || strID == null) { lbtnPrev.Enabled = false; } else { Populate(strID); populateDropdownList(); PopulateSectionNoScore(ddlAssesment.Text.ToString(), strID); PopulateSection(ddlAssesment.Text.ToString(), strID); } }