How WPF framework handles cyclic update of properties in MVVM?

Question

Lets assume property Name is bind to TextBox in view like this.

private string name
public string Name
{
   get {return name;}
   set {
       name=value;
              


        

Answer 1

A standard implementation of a property should look like this:

private string name;

public string Name
{
   get { return name; }

   set
   {
       if( name != value )
       {
           name = value;
           OnPropertyChanged("Name");
       }
   }
}

Note the additional if to make sure the event is only raised if the value of the property actually changed.