C#/Avalonia - Learn MVVM with Avalonia 

Glad to hear it. Happy coding!

Great let me know if you have any feedback or critique on it. Happy coding.

Thanks for the kind words. Happy coding!

Thanks for the kind words. Happy coding!

Yea I can see that. If you want something a bit more basic on the community toolkit, I did a stream on it when it first came out. It uses WPF however most of the content in it is focused on the view model side of things rather than on the XAML. You can check it out here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-uVIzK2snugk.htmlsi=GpQAIpv0pmKRNyZJ Happy coding!

Thanks. Looking to do more Avalonia content in the future as well.

@@Kitokeboo Fantastic! Let us know if you need anything from us!

:) Happy coding

Yea this is one area I think I could do an additional video on. The binding syntax in Avalonia is very rich.

Great question. There are varying techniques, but something that often gets overlooked is that it is perfectly fine in MVVM to register for the events using the view's code behind, and then in the event handler simply call methods on your ViewModel. At the most basic, this is what many techniques attempt to optimize or simplify, but there is nothing wrong with doing it manually. The key is to keep the important logic inside of the view model.

@@Kitokeboo thank you! You are awesome!

Glad to hear it. Been playing with it and enjoying it so there will be more! Happy coding.

I assume the intent here, is how to handle complex properties being passed as the command parameter? There are two ways to go about handling it. The simplest is to simply bind the relevant values to properties in the view model and have the command's Execute/CanExecute method act on those properties rather than using the CommandParameter. The second option is to leverage a MultiBinding with a value converter and bind both of those properties to the CommandParameter property. The value converter would need to return some object that contained both the UserName and Password, and the Command's Execute/CanExecute would be updated to take in the object (as a parameter) returned from the value converter. The Avalonia docs on MultiBindings are here: docs.avaloniaui.net/docs/guides/data-binding/how-to-bind-multiple-properties Personally, I tend to go with the first option most of the time as it is much simpler to implement.

Great. Let me know if you have any questions. Happy Coding!

Yea they have come out with several frameworks over the years but nothing has stuck as well as WinForms and WPF. There is a big focus in cross platform development and Avalonia is looking really good from my perspective. Will be looking to play with it more in the future

@@Kitokeboo yes, Avalonia is looking really good. I think Microsoft will end up just buying them out :D .... Btw the way, have you tried the built in "snoop" tools for Avalonia? .. again .. pretty cool. One thing I had noticed though is that when you run the Browser project, the performance when resizing the window is pretty bad. I created a simple window containing a 3x3 uniform grid of 9 red borders, and then an indeterminate progress bar on top. When you resize the browser window you see what looks like two versions of the buffer, the old size and the new size at the same time.

Great question. I often leave the model out of my samples as it can take a lot of different forms depending on the type of application you are building. For something super simple with a local database you can use Entity Framework Core with SQLite. You can see some videos where I work on a project "Rentopoly" here: Part 1: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-abdiokqqEl8.html Part 2: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-QBeIdK95d9c.html For more enterprise-y software your "model" often becomes API's models using something like HttpClient (learn.microsoft.com/dotnet/fundamentals/networking/http/httpclient-guidelines?WT.mc_id=DT-MVP-5003472) to make the calls to a backend web service.

Yea I would be happy to put it on the agenda. I do have one video on the generic host which is directly applicable to Avalonia as well that you might find useful. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-j3pl2tkBM1A.html

@@Kitokeboo Thanks for this, I've only recently discovered your channel, very impressed!

Great question. I had to do a little digging, but you can find a reference to the default font here: github.com/AvaloniaUI/Avalonia/blob/9be975b0e4874bc5d1cad4872615db40959a2430/src/Avalonia.Themes.Fluent/Accents/BaseResources.xaml#L6 That font is embedded and you can find the font files here: github.com/AvaloniaUI/Avalonia/tree/9be975b0e4874bc5d1cad4872615db40959a2430/src/Avalonia.Fonts.Inter/Assets This was also discussed here: github.com/AvaloniaUI/Avalonia/discussions/11413

Yea I understand that. Happy coding.

That is a trick in VS where you can move lines (or your selected lines) up and down with Alt+Arrow Key. If you look in the top left corner of the screen I run Carnac that will show off keyboard shortcuts when I use them. You can also find more here: learn.microsoft.com/visualstudio/ide/productivity-shortcuts?view=vs-2022&WT.mc_id=DT-MVP-5003472#code-editor Happy coding.

@@Kitokeboo Thanks! I thought it was some kind of extension, but I just have a non-standard keyboard mapping scheme.

Thank you for the kind words. I have considered it but not right now.

Great question. Both are viable options and it depends on what you're doing in the application. Sometimes there are situations where you want to notify the rest of the application that something has occurred and typically a message like what was shown is one of the easiest options. However there are certainly situations where updating the model makes the most sense so that that information can be persisted