Problem with Chapter 8 Try It Out and "Direction.cs"

sycomputing · June 29th, 2010, 12:58 PM

Chapter 8, p. 284 Try it out using C#:

I created the enum using the directions in the book.

The class file "Direction" looks like this (I checked my code against the source I downloaded for the book and the two files appear to be identical):

Code:

public enum Direction
{
  Horizontal,
  Vertical
}

At step 4 I add the following code as specified to the code-behind of "Banner.ascx" like this:

Code:

public partial class Controls_Banner : System.Web.UI.UserControl
{
  public Direction DisplayDirection { get; set; }
  
  protected void Page_Load(object sender, EventArgs e)
  {
    ...
  }
}

Intellisense balks on the Direction property, the error msg is "the type or namespace name Direction cannot be found...."

I ran through everything up to this point twice in the chapter, deleting the user control and the class file and recreating them each time.

Any ideas on what I'm doing incorrectly?

Thanks for your help (and thanks for an easy-to-follow primer on .NET 4)!

Imar · June 29th, 2010, 01:07 PM

Hi there,

The enum looks good to me too.

Where exactly did you define it? E.g. in what file and folder? And is there any other code in that file? And how does the rest of the code for Banner.ascx.cs look like?

What happens when you uncomment the code that tries to make use of the Direction (e.g. the line with the automatic property in the Banner code behind)? Does the remaining code (including the enum) compile corrrectly?

Finally, try saving all changes and restart Visual Studio. Maybe it just hasn't picked up the changes.

Cheers,

Imar

sycomputing · June 29th, 2010, 01:38 PM

Restarting the IDE fixed the problem

(I wonder why rebuilding the site didn't seem to have any effect???)

Thank you for your reply. I'll make sure to get the basics out of the way next time!

Imar · June 30th, 2010, 02:23 AM

Next time, you can also try right-clicking the web site and choosing Build or Rebuild. That forces VWD to compile the site which may work as well.

Cheers,

Imar