I am a beginner in WPF. So I coded the entire blog article at my own will. Then I found it is leading to an exception when input box is empty. Here is my code, on which I fixed the error. https://github.com/ajeebkp23/Simplest-WPF-MVVM-Example. Since, I didn't forked your code I am not coming with a PR.

Hi Mark,

first of all thanks for the examples.

I landed here following your blog https://www.markwithall.com/programming/2013/03/01/worlds-simplest-csharp-wpf-mvvm-example.html

I have notized a couple of problems with links in your blog and here. They not a big deal, but I wanted to let you know, just in case you want to correct them.

1. The microsoft link posted in your blog when you talk about the possible memory leaks of theViewModel is not valid (MS has changed a lot of things and broken a big amount of links out there in the net)
2. The link to the c# 4.0 here in the readme.md is actually pointing the c# 6.0 branch (one can eassily change the url in the navigation bar to get there though)
3. The section "me on the web" of your blog could be reduced a bit since some of those links / services (specially Google's) don't exit anymore

P.S.
Sorry that I posted it here as an issue, it's is the easiest way I found to contact you.
If you want I can delete it later, because it actually has nothing to do with your code.

When mindlessly following your MVVM tutorial an error occurs when trying to add the Window.DataContext

Even though the window has a reference to the right namespace and the filenames are spelled correctly, VS shows an error that :"The name Presenter does not exist in the namespace {insert namespace name}"

The solution was compiling the project first without the DataContext tags. (Found in SO comment Afterwards the Presenter class could be found and set as DataContext.

In the blog post it says:

Model: This can be really simple, the goal here is for the ViewModel not to have to do any of the business logic.

However, the Presenter class - the ViewModel - seems to contain the business logic to convert text to upper case when creating a TextConverter. Shouldn't this be in the Model already?

Please note that I'm fairly new to MVVM so I could easily be wrong here.