I don't want to be smart, but this error: seems to suggest your VS installation is missing something. You get this error when you try to open a .csproj file (for C#) when you only have VB installed, or when you try to open a multi-project Solution file with one of the Express editions.

You may also get it if you try to open a Web Application Project without the required WAP update or VS 2005 SP1 installed.

I don't know the book and I don't know the sample application, but I would check to see if my VS installation matches the book's requirements.

Imar

---------------------------------------
Imar Spaanjaars
http://Imar.Spaanjaars.Com
Everyone is unique, except for me.
Author of ASP.NET 2.0 Instant Results and Beginning Dreamweaver MX / MX 2004

Jim can move this over to the books forum if need be.

Imar is quite correct in his deduction. It seems that you do not have the necessary software installed to run the project. You havent, for example, said which IDE you are using. (I have not read the book nor the chapter in question since this is really a code problem and not a problem with the manuscript.)

Can I assume that you are using Visual C# Express since, after all, this is a C# Book? Or are you using Visual Studio 2Kx? In my original post I said that I tested the .sln file in Visual Studio 2005/2008 and also in Visual Web Developer and the solution opened fine. I do not have Visual C# Express installed on this PC but I bet if I try to open that .sln file in VCE I will get the same error that you are receiving.

Here is why: The express products are designed to do very specific things, VCE for example, will allow you to design Console and Windows form applications in C# but not web projects, you need Visual Web Developer to do that. So if you are trying to open the project in VCE it is going to fail since it is not designed to handle web projects (the project in question is a web project).

If you are trying to open it in Visual Studio, as Imar said, you may not have a complete install of Visual Studio and should investigate that.

hth.


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I am using MS Visual Studio 2005 (not express) and I have checked for any SP from MS.

I did not install all the options including those related to web development as web development is something that I do not know.

I agree maybe I need to re-install and load this option but I am interested in C# not web development and I would contend that the samples should be C# examples not web development examples.



Gmorris59

They are C# examples they just aren't C# windows form's examples and that is why you are getting the error. I will agree with you that these should probably be WinForm examples since chapter 28 is titled: Windows Forms but, IMHO, I don't think you can write a general C# book that focus's strictly on Windows Forms since creating web applications is also a big part of what C# can do.

Personaly, if I were looking for a book that was strictly Windows Forms programming with C# I would look for a book something like Professional Windows Forms (although that book is a bit dated I think)

hth.

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Appreciate your help - it would appear that we have finally got to the bottom of this issue

Gmorris59

No problem, I have also let Jim know about all of this. =]

Cheers.

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