Two way databinding in winforms, Inotifypropertychanged implemented in base class

Question

I use .Net 3.5, Winforms, Databinding

I have derived classes, the base class implements IPropertychanged

    public event PropertyChangedEventHandle         


        

Answer 1

I implemented the "INotifyPropertyChanged", but raise the PropertyChanged event only when the new value is different from the old value:

public class ProfileModel : INotifyPropertyChanged
{
    private Guid _iD;
    private string _name;
    public event PropertyChangedEventHandler PropertyChanged;

    public Guid ID
    {
        get => _iD;
        set
        {
            if (_iD != value)
            {
                _iD = value;
                PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("ID"));
            }
        }
    }

    public string Name
    {
        get => _name;
        set
        {
            if (_name != value)
            {
                _name = value;
                PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("Name"));
            }
        }
    }
}

Now just bind to the controls:

txtProfileID.DataBindings.Clear();
txtProfileID.DataBindings.Add("Text", boundProfile, "ID", true, DataSourceUpdateMode.OnPropertyChanged);