Show Data from Xml file into two gridview based on a condition

Show Data from Xml file into two gridview based on a condition here a file is given and need to show data based on ZIP code condition into two grid view.

XML FILE----

<Employees>
  <NO1>
    <Name>aaa</Name>
    <ZIP>333</ZIP>
    <Address>aaa</Address>
    <City>aa City</City>
    <State>aa</State>
  </NO1>
  <NO2>
    <Name>bbb</Name>
    <ZIP>239</ZIP>
    <Address>bbb</Address>
    <City>bb City</City>
    <State>bbb</State>
  </NO2>
  <NO3>
    <Name>ccc</Name>
    <ZIP>100</ZIP>
    <Address>ccc</Address>
    <City>Bcc City</City>
    <State>ccc</State>
  </NO3>
</Employees>

Code to show these data into two Gridview/Datatables filtered by ZIP code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
public partial class _Default : System.Web.UI.Page
{
    DataRow row2;
    protected void Page_Load(object sender, EventArgs e)
    {    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        DataSet ds = new DataSet();
        ds.ReadXml(Server.MapPath("~/test.xml"));
        DataTable dt = new DataTable();
        DataTable dt1 = new DataTable();
        for (int i = 0; i < ds.Tables.Count; i++)
        {
            if (Convert.ToInt32(ds.Tables[i].Rows[0]["ZIP"].ToString()) > 200)
            {
                dt.Merge(ds.Tables[i]);
            }
            else
            {
                dt1.Merge(ds.Tables[i]);
            }
        }
        GridView1.DataSource = dt;
        GridView1.DataBind();
        GridView2.DataSource = dt1;
        GridView2.DataBind();
    }
}

You need to add two gridview and one button on your aspx page.