Hi Imar,
I'm working on the Try-it-out on p.284 ("Creating Smarter User Controls") for the second time in C#. The first time I did it, the banners did not show up. On my second try, I have a new problem. I followed the directions to the letter, and VWD refuses to recognize DisplayDirection. The error keeps popping up saying "Attribute 'DisplayDirection' is not a valid attribute of element 'Banner'".
First, here is my code-behind for my Banner control:
Code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class Controls_Banner : System.Web.UI.UserControl
{
public Direction DisplayDirection { get; set; }
protected void Page_Load(object sender, EventArgs e)
{
HorizontalPanel.Visible = false;
VerticalPanel.Visible = false;
switch (DisplayDirection)
{
case Direction.Horizontal:
HorizontalPanel.Visible = true;
break;
case Direction.Vertical:
VerticalPanel.Visible = true;
break;
}
}
}
Next, the markup for the banner control:
Code:
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="Banner.ascx.cs" Inherits="Controls_Banner" %>
<asp:Panel ID="VerticalPanel" runat="server">
<a href="http://p2p.wrox.com" target="_blank">
<asp:Image ID="Image1" runat="server" AlternateText="This is a sample banner"
ImageUrl="~/Images/Banner120x240.gif" />
</a>
</asp:Panel>
<asp:Panel ID="HorizontalPanel" runat="server">
<a href="http://p2p.wrox.com" target="_blank">
<asp:Image ID="Image2" runat="server" AlternateText="This is a sample banner"
ImageUrl="~/Images/Banner468x60.gif" />
</a>
</asp:Panel>
Third, my Direction class:
Code:
public enum Direction
{
Horizontal,
Vertical
}
And last, my master file.
Code:
<%@ Master Language="C#" AutoEventWireup="true" CodeFile="Frontend.master.cs" Inherits="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 id="Head1" runat="server">
<title></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">
<asp:Menu ID="Menu1" runat="server" CssClass="MainMenu" DataSourceID="SiteMapDataSource1" Orientation="Horizontal" StaticEnableDefaultPopOutImage="False">
</asp:Menu>
<asp:TreeView ID="TreeView1" runat="server" DataSourceID="SiteMapDataSource1" ShowExpandCollapse="False">
<LevelStyles>
<asp:TreeNodeStyle CssClass="FirstLevelMenuItems" />
</LevelStyles>
</asp:TreeView>
<asp:SiteMapDataSource ID="SiteMapDataSource1" runat="server" ShowStartingNode="False" />
</div>
<div id="MainContent">
<asp:SiteMapPath ID="SiteMapPath1" runat="server">
</asp:SiteMapPath>
<br />
<br />
<asp:ContentPlaceHolder ID="cpMainContent" runat="server">
</asp:ContentPlaceHolder>
</div>
<div id="Sidebar">Select a Theme<br />
<asp:DropDownList ID="ThemeList" runat="server" AutoPostBack="True" OnSelectedIndexChanged="ThemeList_SelectedIndexChanged">
<asp:ListItem>Monochrome</asp:ListItem>
<asp:ListItem>DarkGrey</asp:ListItem>
</asp:DropDownList>
<br />
<br />
<Wrox:Banner ID="Banner1" runat="server" DisplayDirection="Horizontal" />
<br />
</div>
<div id="Footer">Footer Goes Here</div>
</div>
</form>
</body>
</html>
I can't imagine why I could be getting that error. I followed everything to the letter. Any help will be greatly appreciated.
GreenhornPup
Try-it-out on p. 284 - DisplayDirection not recognized
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