What are some examples of data binding in WPF?

What are some examples of data binding in WPF?

In WPF, data binding allows you to connect UI elements to data sources. For example, you can bind a TextBox to a property in a ViewModel.

Can you show me a simple example of binding a TextBox to a property?

Sure! Here's a simple example:

<TextBox Text="{Binding Name, UpdateSourceTrigger=PropertyChanged}" />

In this case, 'Name' is a property in your ViewModel.

What about binding a ListBox to a collection?

You can bind a ListBox to an ObservableCollection like this:

<ListBox ItemsSource="{Binding People}" />

Here, 'People' is an ObservableCollection in your ViewModel.

How do I implement INotifyPropertyChanged?

You implement INotifyPropertyChanged in your ViewModel to notify the UI of property changes. Here's a quick example:

public class Person : INotifyPropertyChanged {
    private string name;
    public string Name {
        get { return name; }
        set {
            name = value;
            OnPropertyChanged(nameof(Name));
        }
    }
    public event PropertyChangedEventHandler PropertyChanged;
    protected void OnPropertyChanged(string propertyName) {
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }
}