Question

I have a property

public sealed partial class Computer
{
    private bool _online;
    public bool Online
    {
        get { return _online; }
        set
        {
            _online = value;
            RaiseProperty("Online");
        }
    }
 }

Which raises an event of type INotifyPropertyChanged

public sealed partial class Computer : INotifyPropertyChanged
{
  public event PropertyChangedEventHandler PropertyChanged;

    private void RaiseProperty(string propertyName)
    {
        if (this.PropertyChanged != null)
        {
            this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
        }
    }
 }

My question is, how can I add an additional event telling in this case an TabControl to run a specific method each time the Online Property changes?

Answer 1

You need to register a method to the PropertyChanged event

MyComputer.PropertyChanged += Computer_PropertyChanged;

void Computer_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
    if (e.PropertyName == "Online")
    {
        // Do Work
    }
}