关于主题的问题

Question

http://topic.csdn.net/u/20081005/21/1f028733-d201-408a-b874-7012afe76c12.html?seed=1840769466
求以上方法的c#实现代码，具体点

Answer 1

<%@ Control Language="C#" %><script runat="server">
  protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
    {
        this.Response.Cookies["theme, per user per site"].Value = this.DropDownList1.SelectedValue;
        this.Page.ClientScript.RegisterStartupScript(this.GetType(),"reload","setTimeout('window.location.href=window.location.href',1);", true);
    }
</script><asp:DropDownList ID="DropDownList1" runat="server" 
    OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged" AutoPostBack="True">
    <asp:ListItem>MSN_Blue</asp:ListItem>
    <asp:ListItem>MSN_CherryBlossom</asp:ListItem>
    <asp:ListItem>MSN_Finance</asp:ListItem>
    <asp:ListItem>MSN_Morning</asp:ListItem>
    <asp:ListItem>MSN_Purple</asp:ListItem>
    <asp:ListItem>MSN_Red</asp:ListItem>
    <asp:ListItem>WinXP_Blue</asp:ListItem>
    <asp:ListItem>WinXP_Silver</asp:ListItem>
</asp:DropDownList>protected override void OnPreInit(EventArgs e)
    {
        base.OnPreInit(e);
        HttpCookie s = Request.Cookies["theme, per user per site"];
        if (s != null && s.Value != null)
            this.Theme = s.Value;
    }