protected void Button1_Click(object sender, EventArgs e) { List <Admin> _LoginUser = new List <Admin>(); List <Student> _StudentUser = new List <Student>(); _LoginBL = new LoginBL(); _studentBL = new StudentBL(); if (rdolibrary.Checked == true) { try { _LoginUser = _LoginBL.BL_LoginAuthentication(txtuname.Text, txtupass.Text); if (_LoginUser.Count > 0) { Session["aid"] = _LoginUser[0].AID.ToString(); Session["email"] = _LoginUser[0].UserName.ToString(); Session["name"] = _LoginUser[0].NAME.ToString(); Response.Redirect("Home.aspx", false); } else { lbl.Text = "Invalid Credential"; } } catch (Exception ex) { Response.Redirect("The Error is " + ex); } finally { } } else { _StudentUser = _studentBL.BL_StudentAuthentication(txtuname.Text, txtupass.Text); if (_StudentUser.Count > 0) { Session["sid"] = _StudentUser[0].SID.ToString(); Session["email"] = txtuname.Text; Response.Redirect("Student_Page/Default.aspx"); } else { lbl.Text = "Invalid Credential"; } } }