How can I get slected value from listbox, when selected then page automatically redirect to other page? C# ASP.NET web

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C#

ASP.NET

Hi!
How can i get selected listbox item on the other page,I want when item is selected then automatically page redirect to other page and this value used in other page,

What I have tried:

Here is my try :

protected void ListBox1_SelectedIndexChanged(object sender, EventArgs e)
   {
       Session["MyVar"] = ListBox1.SelectedValue;
       Response.Redirect("home.aspx");
   }

and here is aspx

<asp:ListBox ID="ListBox1" runat="server" Height="202px" Width="262px" 
        style="margin-left: 247px; margin-top: 68px" 
        onselectedindexchanged="ListBox1_SelectedIndexChanged">
        <asp:ListItem></asp:ListItem>
</asp:ListBox>

I know session variable used in next page but problem is page is not redirected,I want when i select item then automatically page redirect to other page.Thanks