ReactiveUI | functional reactive model-view-viewmodel framework | Reactive Programming library

I am having really weird issues with memory leak and I cannot find source after long hours of testing, debugging and trial/error attempts.

The source of memory leak is reloading object base on push from subject. On which part I load current database values and add it to SourceCache.

This part is getting the push, to initiate reload

I want to use Dynamic Data as WPF's CompositeCollection alternative in an AvaloniaUI project.

Here is some code to expose the issue :

I am building a simple DateTime calculator using a ReactiveUI ReactiveObject viewmodel.

It has a calculate command that calculates a value and correctly updates the result backed by an ObservableAsPropertyHelper field.

I also have a ReactiveUICommand that is supposed to reset all of the UI values.

The problem that I am running into is how to reset the readonly "Result" value.

I have a view model which has a property A. Property A is of a type which has a property B. Now I want to subscribe in my view model's constructor to any direct change of property B. By "direct" I mean that I want to run my subscription only if property B of the current value of property A is changing but not if the value of property A is changed.

By now I have something like this:

I want to implement styling for TabControl in my browser like in chrome. The number of tabs is not fixed, so I want the tab headers to decrease depending on the number of tabs.

To do this, I bind the width of the Grid in the DataTemplate to the count of tabs, which is passed to the converter, which returns the actual width.

But for some reason this does not work, I know that the TabItemCount is accurately passed to the converter. If the converter returns a fixed value, then nothing prevents the tabs from resizing

Style:

I have an object with two WhenAnyValues:

I was following this tutorial, which I do see is based on the .net core 2.1 framework, but adapted for the .net 5 avalonia.mvvm template. I followed the code line for line with the exception of the Program.cs file given the fact that the avalonia.mvvm template in .net 5 implements the ViewLocator.cs class so I don't believe I have to use Locator. Yet, when I run the app while the Router.NavigationStack.Count increments, the view remains on its default content. Here is the code

I want to make a Start / Welcome / Solution selection window which has similar functionalities to the one used in VS19 / VS22, but I'm not sure how to do it exactly.

For more context, my current StartWindowView has a "Create New Project..." button, which should replace the entire window content with a 2-page project creation wizard.

Page 1 should be "Basic Options" where on the bottom there are "Cancel" and "Next" buttons ("Cancel" goes back to the original StartView and "Next" goes to Page2View).

Page 2 should be "Extra Options" where on the bottom there are "Back" and "Finish" buttons ("Back" goes back to Page1View and "Finish" goes back to the StartView, returning a ProjectModel)

From my understanding, these are the ViewModels I'd have to deal with:

I'm trying to test some error responses (BadRequest, Unauthorized, ...) with Refit and so I implemented a TestHandler that returns any desired response. The response works fine with an "OK" (HTTP status code 200) response: