Imar: Thanks for the FAST reply!
Here is the
MasterPage/Frontend.Master code...
<%@ Master Language="C#" AutoEventWireup="true" CodeFile="Frontend.master.cs" Inherits="Site_MasterPages_Frontend" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>The Front End Master</title>
<asp:ContentPlaceHolder id="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<div id="PageWrapper">
<div id="Header"><a id="A1" href="~/" runat="server"></a></div>
<div id="MenuWrapper">Menu Goes Here</div>
<div id="MainContent">
<asp:ContentPlaceHolder ID="cpMainContent" runat="server">
This is default text that shows up in content pages that don't
explicitly override it.
</asp:ContentPlaceHolder>
</div>
Select a Theme:<br />
<div id="Sidebar">
<asp:DropDownList ID="ThemeList" runat="server" AutoPostBack="True"
onselectedindexchanged="ThemeList_SelectedIndexCha nged">
<asp:ListItem>Monochrome</asp:ListItem>
<asp:ListItem>DarkGrey</asp:ListItem>
</asp:DropDownList>
</div>
<div id="Footer">Footer Goes Here</div>
</div>
</form>
</body>
</html>
Here is the (codebehind)
MasterPage/Frontend.Master/Frontend.master.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class Site_MasterPages_Frontend : System.Web.UI.MasterPage
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
string selectedTheme = Page.Theme;
HttpCookie preferredTheme = Request.Cookies.Get("PreferredTheme");
if (preferredTheme != null)
{
selectedTheme = preferredTheme.Value;
}
if (!string.IsNullOrEmpty(selectedTheme) &&
ThemeList.Items.FindByValue(selectedTheme) != null)
{
ThemeList.Items.FindByValue(selectedTheme).Selecte d = true;
}
}
}
protected void ThemeList_SelectedIndexChanged(object sender, EventArgs e)
{
HttpCookie preferredTheme = new HttpCookie("PreferredTheme");
preferredTheme.Expires = DateTime.Now.AddMonths(3);
preferredTheme.Value = ThemeList.SelectedValue;
Response.Cookies.Add(preferredTheme);
Response.Redirect(Request.Url.ToString());
}
}
HERE is BasePage.cs
using System;
using System.Web;
public class BasePage : System.Web.UI.Page
{
private void Page_PreRender(object sender, EventArgs e)
{
if (this.Title == "Untitled Page" || string.IsNullOrEmpty(this.Title))
{
throw new Exception(
"Page title cannot be \"Untitled Page\" or an empty string.");
}
}
private void Page_PreInit(object sender, EventArgs e)
{
HttpCookie preferredTheme = Request.Cookies.Get("PreferredTheme");
if (preferredTheme != null)
{
Page.Theme = preferredTheme.Value;
}
}
public BasePage()
{
this.PreRender += new EventHandler(Page_PreRender);
this.PreInit += new EventHandler(Page_PreInit);
}
}
Can't make the example
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THANKS!
