how to bind xml to grid view using asp.net?

code in .aspx page
drag and drop single grid view

 <asp:GridView ID="GridView1" runat="server">
        </asp:GridView>

Add new item in solution explorer
add xml file
code in.xml file:

<?xml version="1.0" encoding="utf-8" ?>
<Employee>
<Emp>
<Empid>1</Empid>
<EmpName>aswini</EmpName>
</Emp>
<Emp>
  <Empid>2</Empid>
  <EmpName>aluri</EmpName>
</Emp>
</Employee>

code in .aspx.cs page:

add name space

 using system.xml;
protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                getdata();
            }

        }
        public void getdata()
        {
            XmlTextReader xtr = new XmlTextReader(Server.MapPath("XMLFile1.xml"));
            DataSet dt = new DataSet();
            dt.ReadXml(xtr);
            xtr.Close();
            if (dt.Tables.Count != 0)
            {
                GridView1.DataSource = dt;
                GridView1.DataBind();
            }
        }