Programmatically read and get Allowed and Denied Users from Authorization Tag of Web.config in ASP.Net

Please refer this code

HTML

<div>
    Authorization Allow
    <br />
    <asp:GridView ID="gvAuthorizationAllow" runat="server" AutoGenerateColumns="false">
        <Columns>
            <asp:BoundField DataField="users" HeaderText="Users" />
            <asp:BoundField DataField="Roles" HeaderText="Roles" />
        </Columns>
    </asp:GridView>
    <br />
    Authorization Deny
    <br />
    <asp:GridView ID="gvAuthorizationDeny" runat="server" AutoGenerateColumns="false">
        <Columns>
            <asp:BoundField DataField="users" HeaderText="Users" />
            <asp:BoundField DataField="Roles" HeaderText="Roles" />
        </Columns>
    </asp:GridView>
</div>

Web Config

<location path="Page1.aspx">
<system.web>
    <authorization>
        <allow users="Admin" roles="Admin"/>
        <allow users="User" roles="User"/>
        <deny users="User1" roles="User1"/>
    </authorization>
</system.web>
</location>

Namespaces

using System.Xml;
using System.Data;

 C#

protected void Page_Load(object sender, EventArgs e)
{
    string path = Server.MapPath("~/Web.Config");
    DataSet ds = new DataSet();
    ds.ReadXml(path);
    this.gvAuthorizationAllow.DataSource = ds.Tables["allow"];
    this.gvAuthorizationAllow.DataBind();
    this.gvAuthorizationDeny.DataSource = ds.Tables["deny"];
    this.gvAuthorizationDeny.DataBind();
}

Screenshot