监视 WPF 中 Telerik ScheduleView 控件的属性更改

Question

I have 2 properties to a class (WPF control): HorizontalOffset and VerticalOffset (both public Double 's). I would like to call a method whenever these properties change. How can I do this? I know of one way - but I'm pretty sure it's not the right way (using a DispatcherTimer of very short tick intervals to monitor the property).

EDIT FOR MORE CONTEXT:

These properties belong to a telerik scheduleview control.

Answer 1

Leverage the INotifyPropertyChanged interface implementation of the control.

If the control is called myScheduleView :

//subscribe to the event (usually added via the designer, in fairness)
myScheduleView.PropertyChanged += new PropertyChangedEventHandler(
  myScheduleView_PropertyChanged);

private void myScheduleView_PropertyChanged(Object sender,
  PropertyChangedEventArgs e)
{
  if(e.PropertyName == "HorizontalOffset" ||
     e.PropertyName == "VerticalOffset")
  {
    //TODO: something
  }
}

Answer 2

I know of one way ... DispatcherTimer

Wow avoid that :) INotifyPropertyChange interface is your friend. See the msdn for samples.

You basically fire an event(usually called onPropertyChanged ) on the Setter of your properties and the subscribers handle it.

an example implementation from the msdn goes:

// This is a simple customer class that 
// implements the IPropertyChange interface.
public class DemoCustomer  : INotifyPropertyChanged
{
    public event PropertyChangedEventHandler PropertyChanged;    
    private void NotifyPropertyChanged(String info)
    {
        if (PropertyChanged != null)
          PropertyChanged(this, new PropertyChangedEventArgs(info));            
    }

    public string CustomerName
    {
        //getter
        set
        {
            if (value != this.customerNameValue)
            {
                this.customerNameValue = value;
                NotifyPropertyChanged("CustomerName");
            }
        }
    }
}