Chapter 13

rock1233 · October 5th, 2009, 01:39 PM

Hello Imar ,

I was trying to do the exercise 3 of the chapter 13 about LINQ. I did exactly as you wrote in the answer of that exercise, but i got the following error ;

"Input string was not in a correct format."

I got this error for the following line :

Code:

<asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl='<%#  "PictureDetails.aspx?Id=" + Eval("Id") %>' >

Can you please help me to solve this problem ?
Thanks.

jsymons · October 5th, 2009, 02:25 PM

Hello,

I'm far from the expert, but at quick glance it looks like you forgot to call the ToString() method against the Eval as follows to match the Exercise 3 solution on page 678:

Code:

Eval("Id").ToString()

John

Imar · October 5th, 2009, 04:31 PM

Yep, John is correct. This is a bug in the answer of the exercise. Check out the errata section:

http://www.wrox.com/WileyCDA/WroxTit...Cd-ERRATA.html

It's (currently) the last item in the list.

Cheers,

Imar

rock1233 · October 6th, 2009, 12:18 PM

Yes gentelmen you are right, that is the solution.
I added .ToString() and now everything is ok.

Thanks a lot.