Binding object to window textboxes in WPF - wpf

Question

I have a class named Data with some public members: Name, Age, Address.
I have also window with text boxes Name, Age, Address.
The Data object can change any time.
How can I bind the Data object to the text boxes and follow after object changes?
I know there is INotifyPropertyChanged and "dependency-properties" but I do not know how to use them.
Edit
public class MyData : INotifyPropertyChanged
{
private string _name;
public string Name
{
get
{
return _name;
}
set
{
if (_name != value)
{
_name = value;
OnPropertyChnged("Name");
}
}
}
public event PropertyChangedEventHandler PropertyChanged;
protected void OnPropertyChanged(string name)
{
ProppertyChangedEventHandler handler = PropertyChanged;
if (handler != null) handler(this, new PropertyChangedEventArgs(name));
}
}
XAML code:
xmlns:myApp="clr-namespace:MyApp"
<Window.Resources><myApp:MyData x:key = data/></WindowResources>
<TextBox><TextBox.Text><Binding Source="{StaticResource data}" Path="Name" UpdateSourceTrigger="PropertyChanged"/></TextBox.Text></TextBox>
class OtherClass
{
private MyData data;
//the window that have the binding textbox
private MyWindow window;
public OtherClass()
{
data = new MyData();
data.Name = "new name"
window = new MyWindow();
window.show();
}
}

Answer 1

This link from MSDN explains it well.
MSDN link is dead, adding link to a similar article.
When your class property is changed, your property should raise a OnPropertyChanged event with the name of the property so that the View knows to refresh it's binding.
public String Name
{
get { return _name; }
set
{
if (_name != value)
{
_name = value;
this.OnPropertyChanged("Name");
}
}
}
And your textbox should have a binding such as:
<TextBox Text="{Binding Name}"/>
I have a ViewModelBase class which is where I have implemented my OnPropertyChandedEvent for all derived models to call:
/// <summary>
/// An event for when a property has changed.
/// </summary>
public event PropertyChangedEventHandler PropertyChanged;
/// <summary>
/// Virtual method to call the Property Changed method
/// </summary>
/// <param name="propertyName">The name of the property which has changed.</param>
protected virtual void OnPropertyChanged(String propertyName)
{
if (this.PropertyChanged != null)
this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}

Answer 2

Let's the Data class implements INotifyPropertyChanged . Raise the event when someone change the property value on the instances of Data. Then set the proper DataContext to your UI, and bind the single ui element as for example:
<TextBox Text="{Binding Age}"/>