PropertyChangedEventHandler not firing asynchronically

Question

I\'ve implemented this property to hide and show an element:

private bool isWorking = false;

public bool IsWorking {
    get {
        return this.isWorking;
           


        

Answer 1

You probably want to have an async Click event handler like this:

private async void Button_Click(object sender, RoutedEventArgs e)
{
    viewModel.IsWorking = true;

    await Task.Run(() =>
    {
       // do some long processing
    });

    viewModel.IsWorking = false;
}

---

Or an async method in your view model

public async Task DoSomeProcessing()
{
    IsWorking = true;

    await Task.Run(() =>
    {
       // do some long processing
    });

    IsWorking = false;
}

that is called from an async Click handler like

private async void Button_Click(object sender, RoutedEventArgs e)
{
    await viewModel.DoSomeProcessing();
}