How do I display data from Asp Table to a GridView in asp .net

<asp:gridview id="GridView1" runat="server" autogeneratecolumns="false" xmlns:asp="#unknown">
    <columns>
        <asp:boundfield datafield="Id" headertext="Id" />
        <asp:boundfield datafield="Name" headertext="Name" />
        
    </columns>
</asp:gridview>

C# Code

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        DataTable dt = new DataTable();
        dt.Columns.AddRange(new DataColumn[3] { new DataColumn("Id", typeof(int)),
                            new DataColumn("Name", typeof(string))});
        dt.Rows.Add(1, "Ramesh","India");
        dt.Rows.Add(2, "Suresh","India");
        
        GridView1.DataSource = dt;
        GridView1.DataBind();
    }
}