Panel visiblity from two different pages in ASP.Net

Hi Priya,

Please refer below code

Down.aspx

HTML

<div>
    <asp:Button ID="btnButton" Text="Button" runat="server" OnClick="btnButton_Click" />
</div>

C#

protected void btnButton_Click(object sender, EventArgs e)
{
    Response.Redirect("~/Upload.aspx");
}

Default2.aspx

HTML

<div>
    <asp:Button ID="btnUpload" Text="Upload" OnClick="btnUpload_Click" runat="server" />
</div>

C#

protected void btnUpload_Click(object sender, EventArgs e)
{ 
    Response.Redirect("~/Upload.aspx");
}

Upload.aspx

HTML

<div>
    <asp:Panel ID="Panel1" runat="server">
        <br />
        Panel1.
        <br />
    </asp:Panel>
    <br />
    <asp:Panel ID="Panel2" runat="server">
        <br />
        Panel2.
        <br />
    </asp:Panel>
    <asp:Button Text="text" runat="server" />
</div>

C#

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        if (Request.UrlReferrer.AbsoluteUri.Contains("Default2.aspx"))
        {
            Panel1.Visible = true;
            Panel2.Visible = false;
        }
        else if (Request.UrlReferrer.AbsoluteUri.Contains("Down.aspx"))
        {
            Panel2.Visible = true;
            Panel1.Visible = false;
        }
    }
}

Screenshot