为什么命令不起作用并且没有向 TextBlock 添加任何值？

Question

I'm currently trying to figure out the MVVM pattern in wpf, and I'm writing a test application, but I ran into a problem. The CountCommand does not work. Initially, the command was synchronous and also did not work. And if you enter "Application.Current.Shutdown();" then it will close the application by clicking on the TextBlock. This means that the team itself is working and something is wrong in its body.

 internal class MainWindowViewModel
{
    public int i { get; set; }
    public ICommand CountCommand{ get; set; }
    private async void Execute(object p) => await Task.Run(() => i++);
    private bool CanExecute(object p) => true;


    public MainWindowViewModel()
    {
        CountCommand = new CommendBase(Execute, CanExecute);
    }
    
}

The command itself should add 1 when clicking on the Textblock

enter image description here

Answer 1

i think it might have something to do with this: How to capture a variable in C#