WPF - the pain!

As i'm struggling my way through the first WPF application, I keep running into interesting reading (essential really) which seems to be a must for a WPF virgin like me.
A Guided Tour of WPF is priceless, also his article on dependancy properties provides excellent view and i'm sure there's more to explore...
Since i'm struggling with trying to bind ListView to a collection of objects (piece of cake) and also to group the items (pain in the b*), i'm forced to actually try and learn the basics :) There's a very nice article on WPF Data Binding on CodeProject.
Once i figure out the bloody groupping thing, i'll post the sample code here.

Diff tool for C# source code (Part 2)

I'm back with more information on the diff tool for VS (2005) and TFS (2005).
I've decided to use DiffMerge. It may be just me, but I like it better. It's still nowhere as good as Araxis, but since it's free, i shouldn't complain i guess :)

To set up your own diff tool in VS 2005: Tools -> Options. Select Source Control > Visual Studio Team Foundation Server and click Configure User Tools... Then click Add... and specify:

Extension: cs
Operation: Compare
Command : %path to the diffmerge.exe%
Arguments: %1 %2

Obviously, you can do the same for vb, resx, etc...

Now, IMPORTANT thing. This DOES NOT REPLACE THE COMPARE TOOL USED FOR CHECK-IN, which imho totally suxs. So, you need to identify all conflicting files first, then select them one by one e.g. in the solution explorer and click Compare (right-click menu item). This is where the specified Diff tool is shown and you can modify your source prior to checking them in. On check-in, you then select Use Local Version. Make sure that the file didn't get changed on the server in the mean-time though!

ClickOnce Error : Value does not fall within the expected range

I've ran into an issue while releasing application using ClickOnce. The application got downloaded successfully on the client, but then it failed during deploy with the "Value does not fall within the expected range" error.
The issue is that ClickOnce doesn't support having the same application version twice on the machine. In our case, i first installed a "Test" version (different ClickOnce deploy folder) to make sure the app works as expected. Then i did deploy to live ClickOnce folder and tried to run the app on the same computer. The "Live" version exhibited the above error.
Solution is: increment the live version, problem solved.

Diff tool for C# source code

The diff tool which is part of VS 2005 (TFS) is very basic and any complex diff is impossible to resolve in it.
This page has a nice list of tools available:
http://codebetter.com/blogs/patricksmacchia/archive/2008/04/28/diff-tools-to-see-source-files-changes.aspx

I used to use Araxis long time ago and it was brilliant. I'll check out WinMerge and DiffMerge now to see if free tool can do the trick. Will post more info here once I'm done evaluating.