Back to Questions
1.6k
views2
comments
Trouble compiling WPF sample code with VS2008
f#wpf

I'm having trouble getting the WPF image viewer (image-viewer.fsx) sample code that comes with FSharp to compile. (I made a project with "image-viewer.fsx" and "load-wpf.fsx" in it.) I feel like an idiot that I can't even compile the sample code. [:(]

Is there a trick, am I doing something wrong or has FSharp or VS changed since the sample was made?

I'm using VS2008 and FSharp-1.9.3.14

The sample code located here:
C:\Program Files\FSharp-1.9.3.14\samples\fsharp\WPF\GettingStarted

Here are the errors from the whole file:
<i>Error 1 syntax error. C:\DevF#\WPFSample\WPFSample\image-viewer.fsx 70 32 Error 2 syntax error. C:\DevF#\WPFSample\WPFSample\image-viewer.fsx 183 1 Error 3 error in the return expression for this 'let'. Possible incorrect indentation. C:\DevF#\WPFSample\WPFSample\image-viewer.fsx 176 1 Error 4 syntax error at end of file. C:\DevF#\WPFSample\WPFSample\image-viewer.fsx 183 1 Error 5 unmatched '['. C:\DevF#\WPFSample\WPFSample\image-viewer.fsx 69 9 Error 6 syntax error at end of file. C:\DevF#\WPFSample\WPFSample\image-viewer.fsx 183 1 Error 7 unmatched 'let' or 'do'. C:\DevF#\WPFSample\WPFSample\image-viewer.fsx 67 5 Error 8 error in the return expression for this 'let'. Possible incorrect indentation. C:\DevF#\WPFSample\WPFSample\image-viewer.fsx 67 5 Error 9 syntax error C:\DevF#\WPFSample\WPFSample\image-viewer.fsx 183 1 <i> thanks in advance! -Chris

.

Not sure what's the source of the error, but it apears the "computeModel" function is wrong - it has too many arrows in it. Here's how you should fix it:

1
2
3
4
5
6
7
8
9
10
11

let computeModel(urls: string[]) = 
    let images = 
        if urls.Length = 0 then [] else
        [ for x in 0 .. 20-1  do
            for y in 0 .. 20-1 do
              let fx = float x * 0.05
              let fy = float y * 0.05
              let url = urls.[(x*nx+y) % urls.Length]
              yield imageMeshFromUrl url 0.04 (Vector3D(fx,fy,0.0)) ]
    let lights = AmbientLight(Colors.White) :> Model3D
    Model3DGroup(Children = Model3DCollection (lights :: images ))
By on 3/8/2008 11:06 PM ()

Thanks Robert! It compiles now.
Also thanks for writing "Foundations of F#".

-Chris

By on 3/9/2008 6:28 AM ()

    Topic tags

    IntelliFactory Offices Copyright (c) 2011-2012 IntelliFactory. All rights reserved.
    Home | Products | Consulting | Trainings | Blogs | Jobs | Contact Us | Terms of Use | Privacy Policy | Cookie Policy     		Built with WebSharper