I have below class -

public class Myclass : INotifyPropertyChanged
{
  public Action FetchFoo()
  {
     var ctx = SynchronizationContext.Current;
     return() => Task.Factory.StartNew(()=>
     {
       _isLoading = true;
       businesslogic(ctx);
       _isLoading = false;
     });
  }

  public event PropertyChangedEventHandler PropertyChanged;

  public void OnPropertyChanged(string propertyName)
  {
    PropertyChangedEventHandler handler = PropertyChanged;
    if(handler != null)
    {
       handler(this, new PropertyChangedEventArgs(propertyName));
    }
  }


  private bool _isLoading = false;
  public bool IsLoading
  {
    get{ return _isLoading;}
    set
    {
      _isLoading = value;
      OnPropertyChanged("IsLoading");
      commandManager.RefreshCommand.CanExecute();
    }
  }

}

The issue here is set method is never getting called. (Though it is setting the valus of IsLoading Properly). Even if I put a break point here, it doesn't come to set method. OnPropertyChanged() method I want to write few business logic which I am not able to. Can anyone put some insight what wrong I am doing here. Thanks!

CodePudding user response：

The method that has the setter is IsLoading, but you're never calling that. You should use

IsLoading = true;

instead of

_isLoading = true;