P552: The name 'Roles' does not exist in the current context

eddiemcham · April 24th, 2009, 05:50 PM

Hello,

I am unable to complete the Try It Out on pp 552-3. I get the following build error:

CS0103: The name 'Roles' does not exist in the current context

I double-checked that I typed the code example (C# version) exactly as shown on page 552 and that I have Role Manager enabled in web.config.

Any assistance would be most welcome and appreciated.....

Imar · April 26th, 2009, 09:35 AM

Hi there,

Is this for the book Professional ASP.NET 3.5 or for Beginning ASP.NET 3.5? You posted it in the Pro category, but the Beginning book as an exercise with Roles on page 552 / 553 as well...

If you click on the word Roles in the code behind, do you get a small red line under the letter s? If so, then press Shift+Alt+F10 to bring up the Smart Tag for the problem. It gives you two options to fix the problem. Choose the first one that adds a using statement for the System.Web.Security namespace.

In the RTM version of VWD (which was used for this book), this namespace was included by default. However, it seems that SP 1 has changed the default templates a bit so some namespace are no longer included by default.

Hope this helps,

Imar

eddiemcham · May 1st, 2009, 04:27 PM

Sorry for the delayed reply. Got pulled away on several "must have yesterday" projects and am just now getting back to this.

The Ctrl-Shift-F10 didn't pull up anything, and the line under 'Roles' was blue.

But I did manually insert the System.Web.Security line, and now the page works. So I can move on.

Thanks for adding that line to your post! I would've never known about it, much less where to find out about it.

BTW, I'm in the Beginning ASP.NET book. This is my first experience with it. Overwhelming, but I'm slowly getting there (I think).

Imar · May 1st, 2009, 05:03 PM

Ctrl-Shift-F10 != Shift+Alt+F10 ;-)

Imar