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BOOK: Beginning ASP.NET 3.5 : in C# and VB BOOK ISBN: 978-0-470-18759-3
This is the forum to discuss the Wrox book Beginning ASP.NET 3.5: In C# and VB by Imar Spaanjaars; ISBN: 9780470187593
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Old October 5th, 2009, 01:39 PM
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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.
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Old October 5th, 2009, 02:25 PM
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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
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Old October 5th, 2009, 04:31 PM
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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
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Imar Spaanjaars
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Author of Beginning ASP.NET 4.5 : in C# and VB, Beginning ASP.NET Web Pages with WebMatrix
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Old October 6th, 2009, 12:18 PM
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Yes gentelmen you are right, that is the solution.
I added .ToString() and now everything is ok.

Thanks a lot.
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