Tip: How to implement INotifyPropertyChanged interface?

Awesome stuff man. Helped me a lot. Thanks

Be Safe

protected virtual void OnPropertyChanged(PropertyChangedEventArgs e)
{
    PropertyChangedEventHandler eventHandler = this.PropertyChanged;
    if (eventHandler != null)
    {
        eventHandler(this, e);
    }
}

Hi i have problem with using timer in my slApp, i have textbox and bind its text to property of object which is in page.datacontext

first time i see the value of this property, but if i try to change it in the method calld when timer elapsed, it isnt in textbox.

 public class vm
    {
        string s = "nejakyString";
        public event EventHandler SChanged;
        public string S
        {
            get { return s; }
            set { s = value;
                raiseEventPropertyChanged("S");
            }
        } public class vm
    {
        string s = "nejakyString";
        public event EventHandler SChanged;
        public string S
        {
            get { return s; }
            set { s = value;
                raiseEventPropertyChanged("S");
            }
        }
public event PropertyChangedEventHandler PropertyChanged;
        private void raiseEventPropertyChanged(string propertyName)
        {
          if (PropertyChanged != null)
            {           
                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
           }

Page.xaml.cs

            TimerCallback timerDelegate =
                new TimerCallback(elapsed);

            vievModel = new vm();
            this.DataContext = vievModel;

 

   public void elapsed(Object stateInfo)
    {vievModel.S += DateTime.Now.ToString();}

Page.xaml

<TextBox  Name="mujTextbox" Text="{Binding Path=S}"

thanks for helping me.

I usualy have BaseModel class which implements INotifyPropertyChanged interface and has only one method:

It gives you saving in typing time as you don't need repeat code and also you use intellisense to help you.

Next step is to modify propfull snippet to include RaisePropertyChangeEvent() call. By this you decrease time to type property with back up field dramatically.