protected void Button1_Click(object sender, EventArgs e) { dml ob = new dml(); DataTable dt = new DataTable(); dt = ob.check(TextBox2.Text, TextBox1.Text); if (dt.Rows.Count > 0) { TextBox1.Text = ""; TextBox2.Text = ""; Session["username"] = dt.Rows[0]["FIRST_NAME"].ToString(); Session["userid"] = dt.Rows[0]["USER_ID"].ToString(); if (Session["url"] != null) { string url = (string)Session["url"]; if (url == "http://localhost:52193/WebForm7.aspx") { Response.Redirect("WebForm2.aspx"); } else if (Session["adpost"] != null) { Response.Redirect("AdPosting.aspx"); } else { Response.Redirect(url); } } } else { } TextBox1.Text = ""; TextBox2.Text = ""; }