protected void Button1_Click(object sender, EventArgs e) { SQLTrans.CrudServiceClient client = new SQLTrans.CrudServiceClient(); DataSet ds = client.sp_ValidarUsuario(txtUser.Text, txtPass.Text); string user = ""; if (ds.Tables[0].Rows.Count > 0) { try { user = ds.Tables[0].Rows[0][0].ToString(); } catch { } if (user != txtUser.Text) { Session.Remove("userdata"); output.Text = "Usuario o Password incorrectos!"; } else { SQLTrans.LoginData linfo = new SQLTrans.LoginData(); linfo.USER = txtUser.Text; linfo.PASS = txtPass.Text; linfo.isAdmin = client.isAdmin(linfo.USER); Session["userdata"] = linfo; Response.Redirect("Default.aspx"); } } }