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BOOK: Beginning ASP.NET 4 : in C# and VB
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Old June 2nd, 2010, 08:42 PM
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Default ASP4-problems with NavigateUrl property

Hi everyone
Windows 7;
VS2010;
I'm having a weird problem with NavigateUrl property in chapter 8, page 290.
Its a "TryItOut" session, and the problem is in step 5.
until that step everything is fine.
By adding
Code:
 runat="server" id="VerticalLink"
as requested to the line
Code:
<a href="http://p2p.wrox.com" target="_blank" >
in Banner.ascx, some troubles start.
Ive noticed some errors in step 9, when i got a page with error message in the browser intead of the page AboutUs.aspx.
I went backwards, undo actions until i undo step 5, and errors were gone from the error list and the build went fine.
Now, I've decided to do the instructions in step 5 again, so now In Banner.ascx, I have the following line(according to the book,its fine):
Code:
 <a id="VerticalLink" runat="server" href="http://p2p.wrox.com" target="_blank" >
Now when choose build solution i get 4 errors in the erros list, all the same: "Unexpected end of file looking for </a> tag."
Now before step 5, everything went fine, and build finished ok, so i dont know why step 5, which is really noting then adding 2 attributes to the anchor element breaks everything...

10x for any reply people...

Last edited by stormage; June 2nd, 2010 at 08:49 PM..
 
Old June 3rd, 2010, 03:27 AM
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Maybe the error message is just correct and you don't have a closing </a>?

Without runat="server", <a href=.... > is just plain HTML. If it's syntax is invalid, it does not generate error (it may generate a warning though). However, by adding that attribute you turn it into a server control. To successfully parse and create a server control, it's syntax must be valid, and thus the closing </a> is required.

Hope this helps; if not, please post the rest of the relevant code from the page as well.

Cheers,

Imar
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Old June 3rd, 2010, 12:02 PM
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Hi Imar,
Its really weird...
when the code is written whis way in Banner.ascx:
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" runat="server" id="VerticalLink" >
    <asp:Image ID="Image1" runat="server" AlternateText="This is a sample banner" 
    ImageUrl="~/Images/Banner120x240.gif" /> 
                                                  
  
  </a> 
  <br />
  <br />
</asp:Panel>
I get errors, but when its written like this:
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" runat="server" id="VerticalLink" >
    <asp:Image ID="Image1" runat="server" AlternateText="This is a sample banner" 
    ImageUrl="~/Images/Banner120x240.gif" /> </a> 
                                                  
  <br />
  <br />
</asp:Panel>
I get no errors at all.
i dont get it, because all i did is relocate the closing anchor tag and put it closer at the same line and not under the last code.
But now it works.
10x for your time

Last edited by stormage; June 3rd, 2010 at 12:09 PM..
 
Old June 3rd, 2010, 12:46 PM
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Are you sure that this is really the case? Both examples work fine for me....

Imar
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Old June 3rd, 2010, 01:14 PM
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Yes, I'm sure
I dont get it, but it works now
I'm installing VS2010 on my other machine, in order to deal with cases such as this, because it seems like local problem on my machine if it works for you.
Any way, 10x for helping Imar..




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